四年级下册数学题 口算 脱式计算 简算 求小学人教版四年级下册口算和脱式计算，要有简便计算的，谢谢
www.zhiqu.org 时间： 2024-05-31
1.2＋9＝10.2
5.43－3.06＝2.37
3＋1.2＝4.2
0.12＋5＝5.12
1.2＋1.8＋1.4＝4.4
6.2＋16＋3.8＝26
14－0.6＝13.4
20.3－8＝12.3
50－1.5＋4＝ 53.5
175－0.56＝174.44
2.08＋11＝13.089
0.4＋20＝ 20.4
2.5＋67＋7.5＝77
4.5－3＝1.5
25－0.38＝1.62
5.4＋9.6＝15
5.6－4＝1.6
1.45＋55＝56.45
4.6＋49＋51＝104.6
9.1－7＝2.1
10.3－0.3＝ 10
28＋9.2＝37.2
43.6＋2.08＝45.68
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
0.75＋0.25=1
1.37+1+7.63=10
5.6+2.7+4.4=12.7
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
0.34+0.45=0.79
0.57+0.9=1.47
8-4.6=3.4
0.6-0.37=0.23
4.9+9.8=14.7
39.5+98.8=138.3
1.4+2.8=4.2
1.5+3=4.5
1.6+3.2=4.8
1.7+3.4=5.1
1.8+3.6=5.4
1.9+3.8=5.7
0.2+0.40=0.6
2.1+4.2=6.3
2.2+4.4=6.6
2.3+4.6=6.9
2.4+4.8=7.2
2.5+5=7.5
2.6+5.2=7.8
2.7+5.4=8.1
2.8+5.6=8.4
2.9+5.8=8.7
0.3+0.6=0.9
3.1+6.2=9.3
3.2+6.4=9.6
3.3+6.6=9.9
1-0.3=0.7
1.5-0.4=1.1
2-0.5=1.5
2.5-0.6=1.9
3.0-0.7=2.3
3.5-0.8=2.7
4-0.9=3.1
4.5-1=3.5
5-1.1=3.9
5.5-1.2=4.3
6-1.3=4.7
6.5-1.4=5.1
7-1.5=5.5
7.5-1.6=5.9
8-1.7=6.3
8.5-1.8=6.7
9-1.9=7.1
9.5-2=7.5
10-2.1=7.9
10.5-2.2=8.3
11-2.3=8.7
11.5-2.4=9.1
12-2.5=9.5
12.5-2.6=9.9
13-2.7=10.3
0.2+0.6+0.0.2=1
2.8 + 1.5 + 0.7=5
3.12- 5.6 + 2.9=0.42
4.8- 5.4 + 1.4 =0.8
5.6- 3.8 – 0.38 = 1.42
6.4 + 5.9 + 3.7 = 16
7.5 - 3.2 + 4.5 = 8.8
8.7 + 1.8 + 1.9 = 12.4
9.9 - 5.6 + 5.6 =9.9
10.3 - 8.9 - 1.3= 0.1
11.7 + 5.49 + 3.14= 20.33
12.6 +1.2 + 2.3 = 16.1
13.8 - 4.5 + 11.5 =20.8
14.3 - 5.6 – 5.6 =3.1
15.9 - 2.7 – 10.21 = 2.99
16.5 - 1.8 – 1.4= 13.3
17.4 + 2.5 + 2.3= 22.2
18.4 + 8.7 – 5.6 =21.5
19.1+3.2 – 3.4 = 18.9
20.3 - 2.9 + 1.3= 18.7
21.5 - 2.5 + 3.7= 22.7
22.3 + 2.3 + 1.6= 26.2
23.1 + 2.3 + 5.6= 31
24.9 + 11 - 1.2= 34.7
25.5 - 11.5 + 4.3= 18.3
26.4 - 2.3 + 1.3 = 25.4
27.7 + 1.19 - 5.6= 23.29
28.1 + 3.4 - 2.3= 29.2
29.8 -2.16 + 1.2= 28.841.2＋9＝10.2
5.43－3.06＝2.37
3＋1.2＝4.2
0.12＋5＝5.12
1.2＋1.8＋1.4＝4.4
6.2＋16＋3.8＝26
14－0.6＝13.4
20.3－8＝12.3
50－1.5＋4＝ 53.5
175－0.56＝174.44
2.08＋11＝13.089
0.4＋20＝ 20.4
2.5＋67＋7.5＝77
4.5－3＝1.5
25－0.38＝1.62
5.4＋9.6＝15
5.6－4＝1.6
1.45＋55＝56.45
4.6＋49＋51＝104.6
9.1－7＝2.1
10.3－0.3＝ 10
28＋9.2＝37.2
43.6＋2.08＝45.68
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
0.75＋0.25=1
1.37+1+7.63=10
5.6+2.7+4.4=12.7
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
0.34+0.45=0.79
0.57+0.9=1.47
8-4.6=3.4
0.6-0.37=0.23
4.9+9.8=14.7
39.5+98.8=138.3
1.4+2.8=4.2
1.5+3=4.5
1.6+3.2=4.8
1.7+3.4=5.1
1.8+3.6=5.4
1.9+3.8=5.7
0.2+0.40=0.6
2.1+4.2=6.3
2.2+4.4=6.6
2.3+4.6=6.9
2.4+4.8=7.2
2.5+5=7.5
2.6+5.2=7.8
2.7+5.4=8.1
2.8+5.6=8.4
2.9+5.8=8.7
0.3+0.6=0.9
3.1+6.2=9.3
3.2+6.4=9.6
3.3+6.6=9.9
1-0.3=0.7
1.5-0.4=1.1
2-0.5=1.5
2.5-0.6=1.9
3.0-0.7=2.3
3.5-0.8=2.7
4-0.9=3.1
4.5-1=3.5
5-1.1=3.9
5.5-1.2=4.3
6-1.3=4.7
6.5-1.4=5.1
7-1.5=5.5
7.5-1.6=5.9
8-1.7=6.3
8.5-1.8=6.7
9-1.9=7.1
9.5-2=7.5
10-2.1=7.9
10.5-2.2=8.3
11-2.3=8.7
11.5-2.4=9.1
12-2.5=9.5
12.5-2.6=9.9
13-2.7=10.3
0.2+0.6+0.0.2=1
2.8 + 1.5 + 0.7=5
3.12- 5.6 + 2.9=0.42
4.8- 5.4 + 1.4 =0.8
5.6- 3.8 – 0.38 = 1.42
6.4 + 5.9 + 3.7 = 16
7.5 - 3.2 + 4.5 = 8.8
8.7 + 1.8 + 1.9 = 12.4
9.9 - 5.6 + 5.6 =9.9
10.3 - 8.9 - 1.3= 0.1
11.7 + 5.49 + 3.14= 20.33
12.6 +1.2 + 2.3 = 16.1
13.8 - 4.5 + 11.5 =20.8
14.3 - 5.6 – 5.6 =3.1
15.9 - 2.7 – 10.21 = 2.99
16.5 - 1.8 – 1.4= 13.3
17.4 + 2.5 + 2.3= 22.2
18.4 + 8.7 – 5.6 =21.5
19.1+3.2 – 3.4 = 18.9
20.3 - 2.9 + 1.3= 18.7
21.5 - 2.5 + 3.7= 22.7
22.3 + 2.3 + 1.6= 26.2
23.1 + 2.3 + 5.6= 31
24.9 + 11 - 1.2= 34.7
25.5 - 11.5 + 4.3= 18.3
26.4 - 2.3 + 1.3 = 25.4
27.7 + 1.19 - 5.6= 23.29
28.1 + 3.4 - 2.3= 29.2
29.8 -2.16 + 1.2= 28.84
30.1 + 1.5 – 1.5 =30.1
累死了，记得加分！！！！
123+25=148 123-35=88 56×7=392 135÷5=27
248+89=337 ... 146-23=123 ... 155×5=775 ... 456-12=38...
456+45=501 ...546-457=89 ... 45×10=451 ... 564-12=47...
879+54=933 ...896-546=350 ...56×12=672.... 45-5=9...
457+456=913...
7+14=21 ... 18-9=9...
8+16=24 ... 25-5=20...
9+18=27... 56-45=11... 10+20=30... 45-23=22...
11+22=33... 78-23=55... 12+24=36...
15-4=11 20-5=15 25-6=19 30-7=23 35-8=27 40-9=31 45-10=35 50-11=395512=43 60-13=47 65-14=51 70-15=55 75-16=59 80-17=63 85-18=67 90-19=71 95-20=75 100-21=79
105-22=83
110-23=87
115-24=91
120-25=95
125-26=99
130-27=103
13+26=39...
14+28=42...
15+30=45...
16+32=48...
17+34=51...
18+36=54...
19+38=57...
20+40=60...
21+42=63...
22+44=66...
23+46=69...
24+48=72...
25+50=75...
26+52=78...
27+54=81...
28+56=84...
29+58=87...
30+60=90...
31+62=93...
32+64=96...
33+66=99...
5 ÷1 =5
10 ÷2 =5
15 ÷3 =5
20 ÷4 =5
25 ÷5 =5
30 ÷6 =5
35 ÷7 =5
40 ÷8 =5
45 ÷9 =5
50 ÷10 =5
55 ÷11 =5
60 ÷12 =5
65 ÷13 =5
70 ÷14 =5
75 ÷15 =5
80 ÷16 5
85 ÷17 5 90 ÷18 5 95 ÷19 5 100 ÷20 5
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2 4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35 4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14 30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18 5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4 10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5 8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8 9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
12÷3/5=12×（ 5/3） 9÷6/7=9×（ 7/6 ） 30÷5/6=30×（6/5 ） 4×（3/2 ）=4÷2/3 （ 4 ）÷5/7=4×7/5 3÷4/5=3×5/4 （ 24 ）÷7/16=24×（16/7 ） A÷C/B=A×B/C 4÷4/5=5 6÷3/4=8 10÷2/5=25 18÷4/9=81/2 4×4/5=16/5 6×3/4=18/4 10×2/5=4 18×4/9=8 3÷3/4=4 2÷1/3=6 6÷4/5=15/2 1÷5/7=7/5 3/4÷3=1/4 1/3÷2=1/6 4/5÷6=2/15 5/7÷1=5/7
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
17×40＝680, 100－63＝37, 3.2＋1.68＝4.88, 2.8×0.4＝ 1.12
14－7.4＝6.6, 1.92÷0.04＝48, 0.32×500＝160, 0.65＋4.35＝ 5
10－5.4＝4.6, 4÷20＝0.2, 3.5×200＝700, 1.5－0.06＝1.44
0.75÷15＝0.05, 0.4×0.8＝0.32, 4×0.25＝1, 0.36＋1.54＝2
1.01×99＝99.99, 420÷35＝12, 25×12＝300, 135÷0.5＝270
3/4 + 1/4 =1, 2 + 4/9 =22/9, 3 - 2/3 =7/3, 3/4 - 1/2= 1/4
1/6 + 1/2 -1/6 =1/2, 7.5-(2.5+3.8)=1.2, 7/8 + 3/8 =5/4
3/10 +1/5 =1/2, 4/5 - 7/10 =1/10, 2 - 1/6 -1/3 =1.5
0.51÷17＝0.03, 32.8＋19＝51.8, 5.2÷1.3＝4, 1.6×0.4＝ 0.64
4.9×0.7＝3.43, 1÷5＝0.2, 6÷12＝0.5, 0.87－0.49＝0.38
1.(1+1/2)(1+1/3)(1+1/4)......(1+1/100)
2.(1-1/2)(1-1/3)(1-1/4)......(1-1/100)
3.8+2-8+2
4.25*4/25*4
5.7.26-(5.26-1.5)
6.286+198
7.314-202
8.526+301
9.223-99
10.6.25+3.85-2.125+3.875
11.9-2456*21
12.0.5/11.5-4*2.75
13.1/2×3/5
14.3.375+5.75+2.25+6.625
15.1001－9036÷18
16.3.8×5.25+14.5
17.2.1*4.3+5.7*2.1
18.30×1/3
19.102*45-328
20.2/3×12
21.2.8*3.1+17.6/8
22.3/5×5/6
23.(50-12.5)/2.5
24.2/5×1/3
25.6110*47+639
26.1/2-1/6
27.3.5*2.7-52.2/18
28.1/7×1/5
29.3.375*0.97+0.97*6.625
30.25×4/5
31.6.54+2.4+3.46+0.6
32.5/6-1/2
33.95.6*1.8+95.6*8.2
34.1/2×1/5
35.600-420/12
36.344/3.6-5.4*0.25
37.16/2+30/2+90/6
38.3001-1998.
39.5000-105*34
40.0.15/0.25+0.75*1.2
41.(1/2+1/3+1/4)*0.24
42.(25+4)*4
43.300-4263/21
44.0.81/0.25+5.96
45.403÷13×27
46.1.5×4.2－0.75÷0.25
47.3.27×4 +3.27×5.7
48.（1.2+ 1.8）×4.51025－768÷32
49.0.25×80－0.45÷0.9
50.1025－768÷32
51.0.25*2.69*4
52.2348+275*16
53.2/9*15/8-1/12*9/5
54.2.4+2.4*(5.375-3.375)
55.645-45*12
56.0.15+1.2/0.24-0.45
57.3.75-(2.35+0.25/1.25)
58.76*1/4+23*25/100+0.25
59.10-2.87-7.13
60.0.96+9.6*9.9
61.7.5-5.7*1/3
62.12.37-3.25-6.75
63.16*6.8+2.2*16+16
64.401*19+284
65.58.7-16.65/3.7
66.0.4*4.7*2.5+(2.3+5.3)
67.9.31-1.125-7.875
68.640+128*45
69.8.2*1.6-0.336/4.2
70.400*(0.62+0.08)
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
没小数
123+25=148 123-35=88 56×7=392 135÷5=27
248+89=337 ... 146-23=123 ... 155×5=775 ... 456-12=38...
456+45=501 ...546-457=89 ... 45×10=451 ... 564-12=47...
879+54=933 ...896-546=350 ...56×12=672.... 45-5=9...
457+456=913...
7+14=21 ... 18-9=9...
8+16=24 ... 25-5=20...
9+18=27... 56-45=11...
10+20=30... 45-23=22...
11+22=33... 78-23=55...
12+24=36...
10-3=7
15-4=11
20-5=15
25-6=19
30-7=23
35-8=27
40-9=31
45-10=35
50-11=39
55-12=43
60-13=47
65-14=51
70-15=55
75-16=59
80-17=63
85-18=67
90-19=71
95-20=75
100-21=79
105-22=83
110-23=87
115-24=91
120-25=95
125-26=99
130-27=103
13+26=39...
14+28=42...
15+30=45...
16+32=48...
17+34=51...
18+36=54...
19+38=57...
20+40=60...
21+42=63...
22+44=66...
23+46=69...
24+48=72...
25+50=75...
26+52=78...
27+54=81...
28+56=84...
29+58=87...
30+60=90...
31+62=93...
32+64=96...
33+66=99...
5 ÷1 =5
10 ÷2 =5
15 ÷3 =5
20 ÷4 =5
25 ÷5 =5
30 ÷6 =5
35 ÷7 =5
40 ÷8 =5
45 ÷9 =5
50 ÷10 =5
55 ÷11 =5
60 ÷12 =5
65 ÷13 =5
70 ÷14 =5
75 ÷15 =5
80 ÷16 5
85 ÷17 5
90 ÷18 5
95 ÷19 5
100 ÷20 5
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2 4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35 4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14 30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18 5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4 10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5 8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8 9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
12÷3/5=12×（ 5/3） 9÷6/7=9×（ 7/6 ） 30÷5/6=30×（6/5 ） 4×（3/2 ）=4÷2/3 （ 4 ）÷5/7=4×7/5 3÷4/5=3×5/4 （ 24 ）÷7/16=24×（16/7 ） A÷C/B=A×B/C 4÷4/5=5 6÷3/4=8 10÷2/5=25 18÷4/9=81/2 4×4/5=16/5 6×3/4=18/4 10×2/5=4 18×4/9=8 3÷3/4=4 2÷1/3=6 6÷4/5=15/2 1÷5/7=7/5 3/4÷3=1/4 1/3÷2=1/6 4/5÷6=2/15 5/7÷1=5/7
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
17×40＝680, 100－63＝37, 3.2＋1.68＝4.88, 2.8×0.4＝ 1.12
14－7.4＝6.6, 1.92÷0.04＝48, 0.32×500＝160, 0.65＋4.35＝ 5
10－5.4＝4.6, 4÷20＝0.2, 3.5×200＝700, 1.5－0.06＝1.44
0.75÷15＝0.05, 0.4×0.8＝0.32, 4×0.25＝1, 0.36＋1.54＝2
1.01×99＝99.99, 420÷35＝12, 25×12＝300, 135÷0.5＝270
3/4 + 1/4 =1, 2 + 4/9 =22/9, 3 - 2/3 =7/3, 3/4 - 1/2= 1/4
1/6 + 1/2 -1/6 =1/2, 7.5-(2.5+3.8)=1.2, 7/8 + 3/8 =5/4
3/10 +1/5 =1/2, 4/5 - 7/10 =1/10, 2 - 1/6 -1/3 =1.5
0.51÷17＝0.03, 32.8＋19＝51.8, 5.2÷1.3＝4, 1.6×0.4＝ 0.64
4.9×0.7＝3.43, 1÷5＝0.2, 6÷12＝0.5, 0.87－0.49＝0.38
1.(1+1/2)(1+1/3)(1+1/4)......(1+1/100)
2.(1-1/2)(1-1/3)(1-1/4)......(1-1/100)
3.8+2-8+2
4.25*4/25*4
5.7.26-(5.26-1.5)
6.286+198
7.314-202
8.526+301
9.223-99
10.6.25+3.85-2.125+3.875
11.9-2456*21
12.0.5/11.5-4*2.75
13.1/2×3/5
14.3.375+5.75+2.25+6.625
15.1001－9036÷18
16.3.8×5.25+14.5
17.2.1*4.3+5.7*2.1
18.30×1/3
19.102*45-328
20.2/3×12
21.2.8*3.1+17.6/8
22.3/5×5/6
23.(50-12.5)/2.5
24.2/5×1/3
25.6110*47+639
26.1/2-1/6
27.3.5*2.7-52.2/18
28.1/7×1/5
29.3.375*0.97+0.97*6.625
30.25×4/5
31.6.54+2.4+3.46+0.6
32.5/6-1/2
33.95.6*1.8+95.6*8.2
34.1/2×1/5
35.600-420/12
36.344/3.6-5.4*0.25
37.16/2+30/2+90/6
38.3001-1998.
39.5000-105*34
40.0.15/0.25+0.75*1.2
41.(1/2+1/3+1/4)*0.24
42.(25+4)*4
43.300-4263/21
44.0.81/0.25+5.96
45.403÷13×27
46.1.5×4.2－0.75÷0.25
47.3.27×4 +3.27×5.7
48.（1.2+ 1.8）×4.51025－768÷32
49.0.25×80－0.45÷0.9
50.1025－768÷32
51.0.25*2.69*4
52.2348+275*16
53.2/9*15/8-1/12*9/5
54.2.4+2.4*(5.375-3.375)
55.645-45*12
56.0.15+1.2/0.24-0.45
57.3.75-(2.35+0.25/1.25)
58.76*1/4+23*25/100+0.25
59.10-2.87-7.13
60.0.96+9.6*9.9
61.7.5-5.7*1/3
62.12.37-3.25-6.75
63.16*6.8+2.2*16+16
64.401*19+284
65.58.7-16.65/3.7
66.0.4*4.7*2.5+(2.3+5.3)
67.9.31-1.125-7.875
68.640+128*45
69.8.2*1.6-0.336/4.2
70.400*(0.62+0.08)
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
123+25=148 123-35=88 56×7=392 135÷5=27
248+89=337 ... 146-23=123 ... 155×5=775 ... 456-12=38...
456+45=501 ...546-457=89 ... 45×10=451 ... 564-12=47...
879+54=933 ...896-546=350 ...56×12=672.... 45-5=9...
457+456=913...
7+14=21 ... 18-9=9...
8+16=24 ... 25-5=20...
9+18=27... 56-45=11...
10+20=30... 45-23=22...
11+22=33... 78-23=55...
12+24=36...
10-3=7
15-4=11
20-5=15
25-6=19
30-7=23
35-8=27
40-9=31
45-10=35
50-11=39
55-12=43
60-13=47
65-14=51
70-15=55
75-16=59
80-17=63
85-18=67
90-19=71
95-20=75
100-21=79
105-22=83
110-23=87
115-24=91
120-25=95
125-26=99
130-27=103
13+26=39...
14+28=42...
15+30=45...
16+32=48...
17+34=51...
18+36=54...
19+38=57...
20+40=60...
21+42=63...
22+44=66...
23+46=69...
24+48=72...
25+50=75...
26+52=78...
27+54=81...
28+56=84...
29+58=87...
30+60=90...
31+62=93...
32+64=96...
33+66=99...
5 ÷1 =5
10 ÷2 =5
15 ÷3 =5
20 ÷4 =5
25 ÷5 =5
30 ÷6 =5
35 ÷7 =5
40 ÷8 =5
45 ÷9 =5
50 ÷10 =5
55 ÷11 =5
60 ÷12 =5
65 ÷13 =5
70 ÷14 =5
75 ÷15 =5
80 ÷16 5
85 ÷17 5
90 ÷18 5
95 ÷19 5
100 ÷20 5
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2 4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35 4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14 30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18 5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4 10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5 8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8 9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
12÷3/5=12×（ 5/3） 9÷6/7=9×（ 7/6 ） 30÷5/6=30×（6/5 ） 4×（3/2 ）=4÷2/3 （ 4 ）÷5/7=4×7/5 3÷4/5=3×5/4 （ 24 ）÷7/16=24×（16/7 ） A÷C/B=A×B/C 4÷4/5=5 6÷3/4=8 10÷2/5=25 18÷4/9=81/2 4×4/5=16/5 6×3/4=18/4 10×2/5=4 18×4/9=8 3÷3/4=4 2÷1/3=6 6÷4/5=15/2 1÷5/7=7/5 3/4÷3=1/4 1/3÷2=1/6 4/5÷6=2/15 5/7÷1=5/7
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
17×40＝680, 100－63＝37, 3.2＋1.68＝4.88, 2.8×0.4＝ 1.12
14－7.4＝6.6, 1.92÷0.04＝48, 0.32×500＝160, 0.65＋4.35＝ 5
10－5.4＝4.6, 4÷20＝0.2, 3.5×200＝700, 1.5－0.06＝1.44
0.75÷15＝0.05, 0.4×0.8＝0.32, 4×0.25＝1, 0.36＋1.54＝2
1.01×99＝99.99, 420÷35＝12, 25×12＝300, 135÷0.5＝270
3/4 + 1/4 =1, 2 + 4/9 =22/9, 3 - 2/3 =7/3, 3/4 - 1/2= 1/4
1/6 + 1/2 -1/6 =1/2, 7.5-(2.5+3.8)=1.2, 7/8 + 3/8 =5/4
3/10 +1/5 =1/2, 4/5 - 7/10 =1/10, 2 - 1/6 -1/3 =1.5
0.51÷17＝0.03, 32.8＋19＝51.8, 5.2÷1.3＝4, 1.6×0.4＝ 0.64
4.9×0.7＝3.43, 1÷5＝0.2, 6÷12＝0.5, 0.87－0.49＝0.38
回答者：370116 - 武林盟主 十六级 2-25 14:34
1.(1+1/2)(1+1/3)(1+1/4)......(1+1/100)
2.(1-1/2)(1-1/3)(1-1/4)......(1-1/100)
3.8+2-8+2
4.25*4/25*4
5.7.26-(5.26-1.5)
6.286+198
7.314-202
8.526+301
9.223-99
10.6.25+3.85-2.125+3.875
11.9-2456*21
12.0.5/11.5-4*2.75
13.1/2×3/5
14.3.375+5.75+2.25+6.625
15.1001－9036÷18
16.3.8×5.25+14.5
17.2.1*4.3+5.7*2.1
18.30×1/3
19.102*45-328
20.2/3×12
21.2.8*3.1+17.6/8
22.3/5×5/6
23.(50-12.5)/2.5
24.2/5×1/3
25.6110*47+639
26.1/2-1/6
27.3.5*2.7-52.2/18
28.1/7×1/5
29.3.375*0.97+0.97*6.625
30.25×4/5
31.6.54+2.4+3.46+0.6
32.5/6-1/2
33.95.6*1.8+95.6*8.2
34.1/2×1/5
35.600-420/12
36.344/3.6-5.4*0.25
37.16/2+30/2+90/6
38.3001-1998.
39.5000-105*34
40.0.15/0.25+0.75*1.2
41.(1/2+1/3+1/4)*0.24
42.(25+4)*4
43.300-4263/21
44.0.81/0.25+5.96
45.403÷13×27
46.1.5×4.2－0.75÷0.25
47.3.27×4 +3.27×5.7
48.（1.2+ 1.8）×4.51025－768÷32
49.0.25×80－0.45÷0.9
50.1025－768÷32
51.0.25*2.69*4
52.2348+275*16
53.2/9*15/8-1/12*9/5
54.2.4+2.4*(5.375-3.375)
55.645-45*12
56.0.15+1.2/0.24-0.45
57.3.75-(2.35+0.25/1.25)
58.76*1/4+23*25/100+0.25
59.10-2.87-7.13
60.0.96+9.6*9.9
61.7.5-5.7*1/3
62.12.37-3.25-6.75
63.16*6.8+2.2*16+16
64.401*19+284
65.58.7-16.65/3.7
66.0.4*4.7*2.5+(2.3+5.3)
67.9.31-1.125-7.875
68.640+128*45
69.8.2*1.6-0.336/4.2
70.400*(0.62+0.08)
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
123+25=148 123-35=88 56×7=392 135÷5=27
248+89=337 ... 146-23=123 ... 155×5=775 ... 456-12=38...
456+45=501 ...546-457=89 ... 45×10=451 ... 564-12=47...
879+54=933 ...896-546=350 ...56×12=672.... 45-5=9...
457+456=913...
7+14=21 ... 18-9=9...
8+16=24 ... 25-5=20...
9+18=27... 56-45=11...
10+20=30... 45-23=22...
11+22=33... 78-23=55...
12+24=36...
10-3=7
15-4=11
20-5=15
25-6=19
30-7=23
35-8=27
40-9=31
45-10=35
50-11=39
55-12=43
60-13=47
65-14=51
70-15=55
75-16=59
80-17=63
85-18=67
90-19=71
95-20=75
100-21=79
105-22=83
110-23=87
115-24=91
120-25=95
125-26=99
130-27=103
13+26=39...
14+28=42...
15+30=45...
16+32=48...
17+34=51...
18+36=54...
19+38=57...
20+40=60...
21+42=63...
22+44=66...
23+46=69...
24+48=72...
25+50=75...
26+52=78...
27+54=81...
28+56=84...
29+58=87...
30+60=90...
31+62=93...
32+64=96...
33+66=99...
5 ÷1 =5
10 ÷2 =5
15 ÷3 =5
20 ÷4 =5
25 ÷5 =5
30 ÷6 =5
35 ÷7 =5
40 ÷8 =5
45 ÷9 =5
50 ÷10 =5
55 ÷11 =5
60 ÷12 =5
65 ÷13 =5
70 ÷14 =5
75 ÷15 =5
80 ÷16 5
85 ÷17 5
90 ÷18 5
95 ÷19 5
100 ÷20 5
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2 4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35 4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14 30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18 5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4 10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5 8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8 9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
12÷3/5=12×（ 5/3） 9÷6/7=9×（ 7/6 ） 30÷5/6=30×（6/5 ） 4×（3/2 ）=4÷2/3 （ 4 ）÷5/7=4×7/5 3÷4/5=3×5/4 （ 24 ）÷7/16=24×（16/7 ） A÷C/B=A×B/C 4÷4/5=5 6÷3/4=8 10÷2/5=25 18÷4/9=81/2 4×4/5=16/5 6×3/4=18/4 10×2/5=4 18×4/9=8 3÷3/4=4 2÷1/3=6 6÷4/5=15/2 1÷5/7=7/5 3/4÷3=1/4 1/3÷2=1/6 4/5÷6=2/15 5/7÷1=5/7
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
27÷9=3
53+8=61
4×9=36
8÷2=4
32÷8=4
8÷1=8
9×9=81
84+7=91
80－44=36
1800－900=900
4900－1800=3100
420+80=500
430+1000= 1430
500－60= 440
89－8= 81
64－8= 56
34+9= 43
14÷7= 2
5+58= 63
64÷8= 8
6×3= 18
9×9= 81
72÷8= 9
78+15= 93
83－20= 63
43－30= 13
9÷1= 9
280+450= 730
7÷7= 1
3600+5800= 9400
8×9+21= 93
4600+4700= 9300
730－190= 540
3700－370= 3330
8500－5500= 3000
3200+5100= 8300
96－42= 54
1200－400= 800
830－300= 530
800+900= 1700
58－36= 22
7000+3000= 100000
5×7= 35
72÷9= 8
36÷6= 6
81÷9= 9
42+13= 55
24÷3= 8
24+8= 32
27－3= 24
42+13= 55
42－6= 36
7+44= 51
42÷7= 6
64－8= 56
21÷3= 7
4×8= 32
54÷9= 6
49÷7= 7
42÷7= 6
35÷7= 5
19+41= 60
24－6×3=6
4×8－5= 27
27÷3+6= 15
56÷7－3= 5
49÷9+7= （小数点后几位）
4×3÷2= 6
6÷3×7= 14
8÷4×3= 6
6×5+37= 67
12÷4+18= 21
16÷4×8= 32
8÷4+48= 50
25÷5+36= 41
6×8—42= 6
2×8÷4= 4
8×9÷9= 8
36÷6÷3= 2
9÷9×6= 6
42÷7×6= 36
96－80+7= 23
64－40－8= 16
40－4+20= 56
7×5－8= 27
14÷7+25= 27
15÷5+8= 11
8×9－8= 64
1×2+20= 22
16÷8+30 =32
7×7+8= 57
54÷6+33= 42
510+200= 710
15－45÷9= 10
11－40÷8= 6
7+1×8= 15
130+80= 210
46－8= 38
8×5－7= 33
9×3－8= 19
30÷6= 5
36÷4= 9
4×5+44=64
48÷8+7= 13
1800+200= 2000
93－80= 13
6×5+37= 67
10－8÷1= 2
7×8= 56
73－4= 69
3×8÷4= 6
7×6+10= 23
72÷8= 9
64－8= 58
24×0= 0
71－7+30= 94
6＋2×8 =22
35－9= 26
70－5×9= 25
8×9+21= 93
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
1.2＋9＝10.2
5.43－3.06＝2.37
3＋1.2＝4.2
0.12＋5＝5.12
1.2＋1.8＋1.4＝4.4
6.2＋16＋3.8＝26
14－0.6＝13.4
20.3－8＝12.3
50－1.5＋4＝ 53.5
175－0.56＝174.44
2.08＋11＝13.089
0.4＋20＝ 20.4
2.5＋67＋7.5＝77
4.5－3＝1.5
25－0.38＝1.62
5.4＋9.6＝15
5.6－4＝1.6
1.45＋55＝56.45
4.6＋49＋51＝104.6
9.1－7＝2.1
10.3－0.3＝ 10
28＋9.2＝37.2
43.6＋2.08＝45.68
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
0.75＋0.25=1
1.37+1+7.63=10
5.6+2.7+4.4=12.7
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
0.34+0.45=0.79
0.57+0.9=1.47
8-4.6=3.4
0.6-0.37=0.23
4.9+9.8=14.7
39.5+98.8=138.3
1.4+2.8=4.2
1.5+3=4.5
1.6+3.2=4.8
1.7+3.4=5.1
1.8+3.6=5.4
1.9+3.8=5.7
0.2+0.40=0.6
2.1+4.2=6.3
2.2+4.4=6.6
2.3+4.6=6.9
2.4+4.8=7.2
2.5+5=7.5
2.6+5.2=7.8
2.7+5.4=8.1
2.8+5.6=8.4
2.9+5.8=8.7
0.3+0.6=0.9
3.1+6.2=9.3
3.2+6.4=9.6
3.3+6.6=9.9
1-0.3=0.7
1.5-0.4=1.1
2-0.5=1.5
2.5-0.6=1.9
3.0-0.7=2.3
3.5-0.8=2.7
4-0.9=3.1
4.5-1=3.5
5-1.1=3.9
5.5-1.2=4.3
6-1.3=4.7
6.5-1.4=5.1
7-1.5=5.5
7.5-1.6=5.9
8-1.7=6.3
8.5-1.8=6.7
9-1.9=7.1
9.5-2=7.5
10-2.1=7.9
10.5-2.2=8.3
11-2.3=8.7
11.5-2.4=9.1
12-2.5=9.5
12.5-2.6=9.9
13-2.7=10.3
0.2+0.6+0.0.2=1
2.8 + 1.5 + 0.7=5
3.12- 5.6 + 2.9=0.42
4.8- 5.4 + 1.4 =0.8
5.6- 3.8 – 0.38 = 1.42
6.4 + 5.9 + 3.7 = 16
7.5 - 3.2 + 4.5 = 8.8
8.7 + 1.8 + 1.9 = 12.4
9.9 - 5.6 + 5.6 =9.9
10.3 - 8.9 - 1.3= 0.1
11.7 + 5.49 + 3.14= 20.33
12.6 +1.2 + 2.3 = 16.1
13.8 - 4.5 + 11.5 =20.8
14.3 - 5.6 – 5.6 =3.1
15.9 - 2.7 – 10.21 = 2.99
16.5 - 1.8 – 1.4= 13.3
17.4 + 2.5 + 2.3= 22.2
18.4 + 8.7 – 5.6 =21.5
19.1+3.2 – 3.4 = 18.9
20.3 - 2.9 + 1.3= 18.7
21.5 - 2.5 + 3.7= 22.7
22.3 + 2.3 + 1.6= 26.2
23.1 + 2.3 + 5.6= 31
24.9 + 11 - 1.2= 34.7
25.5 - 11.5 + 4.3= 18.3
26.4 - 2.3 + 1.3 = 25.4
27.7 + 1.19 - 5.6= 23.29
28.1 + 3.4 - 2.3= 29.2
29.8 -2.16 + 1.2= 28.841.2＋9＝10.2
5.43－3.06＝2.37
3＋1.2＝4.2
0.12＋5＝5.12
1.2＋1.8＋1.4＝4.4
6.2＋16＋3.8＝26
14－0.6＝13.4
20.3－8＝12.3
50－1.5＋4＝ 53.5
175－0.56＝174.44
2.08＋11＝13.089
0.4＋20＝ 20.4
2.5＋67＋7.5＝77
4.5－3＝1.5
25－0.38＝1.62
5.4＋9.6＝15
5.6－4＝1.6
1.45＋55＝56.45
4.6＋49＋51＝104.6
9.1－7＝2.1
10.3－0.3＝ 10
28＋9.2＝37.2
43.6＋2.08＝45.68
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
0.75＋0.25=1
1.37+1+7.63=10
5.6+2.7+4.4=12.7
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
0.34+0.45=0.79
0.57+0.9=1.47
8-4.6=3.4
0.6-0.37=0.23
4.9+9.8=14.7
39.5+98.8=138.3
1.4+2.8=4.2
1.5+3=4.5
1.6+3.2=4.8
1.7+3.4=5.1
1.8+3.6=5.4
1.9+3.8=5.7
0.2+0.40=0.6
2.1+4.2=6.3
2.2+4.4=6.6
2.3+4.6=6.9
2.4+4.8=7.2
2.5+5=7.5
2.6+5.2=7.8
2.7+5.4=8.1
2.8+5.6=8.4
2.9+5.8=8.7
0.3+0.6=0.9
3.1+6.2=9.3
3.2+6.4=9.6
3.3+6.6=9.9
1-0.3=0.7
1.5-0.4=1.1
2-0.5=1.5
2.5-0.6=1.9
3.0-0.7=2.3
3.5-0.8=2.7
4-0.9=3.1
4.5-1=3.5
5-1.1=3.9
5.5-1.2=4.3
6-1.3=4.7
6.5-1.4=5.1
7-1.5=5.5
7.5-1.6=5.9
8-1.7=6.3
8.5-1.8=6.7
9-1.9=7.1
9.5-2=7.5
10-2.1=7.9
10.5-2.2=8.3
11-2.3=8.7
11.5-2.4=9.1
12-2.5=9.5
12.5-2.6=9.9
13-2.7=10.3
0.2+0.6+0.0.2=1
2.8 + 1.5 + 0.7=5
3.12- 5.6 + 2.9=0.42
4.8- 5.4 + 1.4 =0.8
5.6- 3.8 – 0.38 = 1.42
6.4 + 5.9 + 3.7 = 16
7.5 - 3.2 + 4.5 = 8.8
8.7 + 1.8 + 1.9 = 12.4
9.9 - 5.6 + 5.6 =9.9
10.3 - 8.9 - 1.3= 0.1
11.7 + 5.49 + 3.14= 20.33
12.6 +1.2 + 2.3 = 16.1
13.8 - 4.5 + 11.5 =20.8
14.3 - 5.6 – 5.6 =3.1
15.9 - 2.7 – 10.21 = 2.99
16.5 - 1.8 – 1.4= 13.3
17.4 + 2.5 + 2.3= 22.2
18.4 + 8.7 – 5.6 =21.5
19.1+3.2 – 3.4 = 18.9
20.3 - 2.9 + 1.3= 18.7
21.5 - 2.5 + 3.7= 22.7
22.3 + 2.3 + 1.6= 26.2
23.1 + 2.3 + 5.6= 31
24.9 + 11 - 1.2= 34.7
25.5 - 11.5 + 4.3= 18.3
26.4 - 2.3 + 1.3 = 25.4
27.7 + 1.19 - 5.6= 23.29
28.1 + 3.4 - 2.3= 29.2
29.8 -2.16 + 1.2= 28.84
30.1 + 1.5 – 1.5 =30.1
累死了，记得加分！！！！
1.2＋9＝10.2
5.43－3.06＝2.37
3＋1.2＝4.2
0.12＋5＝5.12
1.2＋1.8＋1.4＝4.4
6.2＋16＋3.8＝26
14－0.6＝13.4
20.3－8＝12.3
50－1.5＋4＝ 53.5
175－0.56＝174.44
2.08＋11＝13.089
0.4＋20＝ 20.4
2.5＋67＋7.5＝77
4.5－3＝1.5
25－0.38＝1.62
5.4＋9.6＝15
5.6－4＝1.6
1.45＋55＝56.45
4.6＋49＋51＝104.6
9.1－7＝2.1
10.3－0.3＝ 10
28＋9.2＝37.2
43.6＋2.08＝45.68
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
0.75＋0.25=1
1.37+1+7.63=10
5.6+2.7+4.4=12.7
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
0.34+0.45=0.79
0.57+0.9=1.47
8-4.6=3.4
0.6-0.37=0.23
4.9+9.8=14.7
39.5+98.8=138.3
1.4+2.8=4.2
1.5+3=4.5
1.6+3.2=4.8
1.7+3.4=5.1
1.8+3.6=5.4
1.9+3.8=5.7
0.2+0.40=0.6
2.1+4.2=6.3
2.2+4.4=6.6
2.3+4.6=6.9
2.4+4.8=7.2
2.5+5=7.5
2.6+5.2=7.8
2.7+5.4=8.1
2.8+5.6=8.4
2.9+5.8=8.7
0.3+0.6=0.9
3.1+6.2=9.3
3.2+6.4=9.6
3.3+6.6=9.9
1-0.3=0.7
1.5-0.4=1.1
2-0.5=1.5
2.5-0.6=1.9
3.0-0.7=2.3
3.5-0.8=2.7
4-0.9=3.1
4.5-1=3.5
5-1.1=3.9
5.5-1.2=4.3
6-1.3=4.7
6.5-1.4=5.1
7-1.5=5.5
7.5-1.6=5.9
8-1.7=6.3
8.5-1.8=6.7
9-1.9=7.1
9.5-2=7.5
10-2.1=7.9
10.5-2.2=8.3
11-2.3=8.7
11.5-2.4=9.1
12-2.5=9.5
12.5-2.6=9.9
13-2.7=10.3
0.2+0.6+0.0.2=1
2.8 + 1.5 + 0.7=5
3.12- 5.6 + 2.9=0.42
4.8- 5.4 + 1.4 =0.8
5.6- 3.8 – 0.38 = 1.42
6.4 + 5.9 + 3.7 = 16
7.5 - 3.2 + 4.5 = 8.8
8.7 + 1.8 + 1.9 = 12.4
9.9 - 5.6 + 5.6 =9.9
10.3 - 8.9 - 1.3= 0.1
11.7 + 5.49 + 3.14= 20.33
12.6 +1.2 + 2.3 = 16.1
13.8 - 4.5 + 11.5 =20.8
14.3 - 5.6 – 5.6 =3.1
15.9 - 2.7 – 10.21 = 2.99
16.5 - 1.8 – 1.4= 13.3
17.4 + 2.5 + 2.3= 22.2
18.4 + 8.7 – 5.6 =21.5
19.1+3.2 – 3.4 = 18.9
20.3 - 2.9 + 1.3= 18.7
21.5 - 2.5 + 3.7= 22.7
22.3 + 2.3 + 1.6= 26.2
23.1 + 2.3 + 5.6= 31
24.9 + 11 - 1.2= 34.7
25.5 - 11.5 + 4.3= 18.3
26.4 - 2.3 + 1.3 = 25.4
27.7 + 1.19 - 5.6= 23.29
28.1 + 3.4 - 2.3= 29.2
29.8 -2.16 + 1.2= 28.841.2＋9＝10.2
5.43－3.06＝2.37
3＋1.2＝4.2
0.12＋5＝5.12
1.2＋1.8＋1.4＝4.4
6.2＋16＋3.8＝26
14－0.6＝13.4
20.3－8＝12.3
50－1.5＋4＝ 53.5
175－0.56＝174.44
2.08＋11＝13.089
0.4＋20＝ 20.4
2.5＋67＋7.5＝77
4.5－3＝1.5
25－0.38＝1.62
5.4＋9.6＝15
5.6－4＝1.6
1.45＋55＝56.45
4.6＋49＋51＝104.6
9.1－7＝2.1
10.3－0.3＝ 10
28＋9.2＝37.2
43.6＋2.08＝45.68
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
0.75＋0.25=1
1.37+1+7.63=10
5.6+2.7+4.4=12.7
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
0.34+0.45=0.79
0.57+0.9=1.47
8-4.6=3.4
0.6-0.37=0.23
4.9+9.8=14.7
39.5+98.8=138.3
1.4+2.8=4.2
1.5+3=4.5
1.6+3.2=4.8
1.7+3.4=5.1
1.8+3.6=5.4
1.9+3.8=5.7
0.2+0.40=0.6
2.1+4.2=6.3
2.2+4.4=6.6
2.3+4.6=6.9
2.4+4.8=7.2
2.5+5=7.5
2.6+5.2=7.8
2.7+5.4=8.1
2.8+5.6=8.4
2.9+5.8=8.7
0.3+0.6=0.9
3.1+6.2=9.3
3.2+6.4=9.6
3.3+6.6=9.9
1-0.3=0.7
1.5-0.4=1.1
2-0.5=1.5
2.5-0.6=1.9
3.0-0.7=2.3
3.5-0.8=2.7
4-0.9=3.1
4.5-1=3.5
5-1.1=3.9
5.5-1.2=4.3
6-1.3=4.7
6.5-1.4=5.1
7-1.5=5.5
7.5-1.6=5.9
8-1.7=6.3
8.5-1.8=6.7
9-1.9=7.1
9.5-2=7.5
10-2.1=7.9
10.5-2.2=8.3
11-2.3=8.7
11.5-2.4=9.1
12-2.5=9.5
12.5-2.6=9.9
13-2.7=10.3
0.2+0.6+0.0.2=1
2.8 + 1.5 + 0.7=5
3.12- 5.6 + 2.9=0.42
4.8- 5.4 + 1.4 =0.8
5.6- 3.8 – 0.38 = 1.42
6.4 + 5.9 + 3.7 = 16
7.5 - 3.2 + 4.5 = 8.8
8.7 + 1.8 + 1.9 = 12.4
9.9 - 5.6 + 5.6 =9.9
10.3 - 8.9 - 1.3= 0.1
11.7 + 5.49 + 3.14= 20.33
12.6 +1.2 + 2.3 = 16.1
13.8 - 4.5 + 11.5 =20.8
14.3 - 5.6 – 5.6 =3.1
15.9 - 2.7 – 10.21 = 2.99
16.5 - 1.8 – 1.4= 13.3
17.4 + 2.5 + 2.3= 22.2
18.4 + 8.7 – 5.6 =21.5
19.1+3.2 – 3.4 = 18.9
20.3 - 2.9 + 1.3= 18.7
21.5 - 2.5 + 3.7= 22.7
22.3 + 2.3 + 1.6= 26.2
23.1 + 2.3 + 5.6= 31
24.9 + 11 - 1.2= 34.7
25.5 - 11.5 + 4.3= 18.3
26.4 - 2.3 + 1.3 = 25.4
27.7 + 1.19 - 5.6= 23.29
28.1 + 3.4 - 2.3= 29.2
29.8 -2.16 + 1.2= 28.84
30.1 + 1.5 – 1.5 =30.1
累死了
1.2＋9＝10.2
5.43－3.06＝2.37
3＋1.2＝4.2
0.12＋5＝5.12
1.2＋1.8＋1.4＝4.4
6.2＋16＋3.8＝26
14－0.6＝13.4
20.3－8＝12.3
50－1.5＋4＝ 53.5
175－0.56＝174.44
2.08＋11＝13.089
0.4＋20＝ 20.4
2.5＋67＋7.5＝77
4.5－3＝1.5
25－0.38＝1.62
5.4＋9.6＝15
5.6－4＝1.6
1.45＋55＝56.45
4.6＋49＋51＝104.6
9.1－7＝2.1
10.3－0.3＝ 10
28＋9.2＝37.2
43.6＋2.08＝45.68
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
0.75＋0.25=1
1.37+1+7.63=10
5.6+2.7+4.4=12.7
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
0.34+0.45=0.79
0.57+0.9=1.47
8-4.6=3.4
0.6-0.37=0.23
4.9+9.8=14.7
39.5+98.8=138.3
1.4+2.8=4.2
1.5+3=4.5
1.6+3.2=4.8
1.7+3.4=5.1
1.8+3.6=5.4
1.9+3.8=5.7
0.2+0.40=0.6
2.1+4.2=6.3
2.2+4.4=6.6
2.3+4.6=6.9
2.4+4.8=7.2
2.5+5=7.5
2.6+5.2=7.8
2.7+5.4=8.1
2.8+5.6=8.4
2.9+5.8=8.7
0.3+0.6=0.9
3.1+6.2=9.3
3.2+6.4=9.6
3.3+6.6=9.9
1-0.3=0.7
1.5-0.4=1.1
2-0.5=1.5
2.5-0.6=1.9
3.0-0.7=2.3
3.5-0.8=2.7
4-0.9=3.1
4.5-1=3.5
5-1.1=3.9
5.5-1.2=4.3
6-1.3=4.7
6.5-1.4=5.1
7-1.5=5.5
7.5-1.6=5.9
8-1.7=6.3
8.5-1.8=6.7
9-1.9=7.1
9.5-2=7.5
10-2.1=7.9
10.5-2.2=8.3
11-2.3=8.7
11.5-2.4=9.1
12-2.5=9.5
12.5-2.6=9.9
13-2.7=10.3
0.2+0.6+0.0.2=1
2.8 + 1.5 + 0.7=5
3.12- 5.6 + 2.9=0.42
4.8- 5.4 + 1.4 =0.8
5.6- 3.8 – 0.38 = 1.42
6.4 + 5.9 + 3.7 = 16
7.5 - 3.2 + 4.5 = 8.8
8.7 + 1.8 + 1.9 = 12.4
9.9 - 5.6 + 5.6 =9.9
10.3 - 8.9 - 1.3= 0.1
11.7 + 5.49 + 3.14= 20.33
12.6 +1.2 + 2.3 = 16.1
13.8 - 4.5 + 11.5 =20.8
14.3 - 5.6 – 5.6 =3.1
15.9 - 2.7 – 10.21 = 2.99
16.5 - 1.8 – 1.4= 13.3
17.4 + 2.5 + 2.3= 22.2
18.4 + 8.7 – 5.6 =21.5
19.1+3.2 – 3.4 = 18.9
20.3 - 2.9 + 1.3= 18.7
21.5 - 2.5 + 3.7= 22.7
22.3 + 2.3 + 1.6= 26.2
23.1 + 2.3 + 5.6= 31
24.9 + 11 - 1.2= 34.7
25.5 - 11.5 + 4.3= 18.3
26.4 - 2.3 + 1.3 = 25.4
27.7 + 1.19 - 5.6= 23.29
28.1 + 3.4 - 2.3= 29.2
29.8 -2.16 + 1.2= 28.841.2＋9＝10.2
5.43－3.06＝2.37
3＋1.2＝4.2
0.12＋5＝5.12
1.2＋1.8＋1.4＝4.4
6.2＋16＋3.8＝26
14－0.6＝13.4
20.3－8＝12.3
50－1.5＋4＝ 53.5
175－0.56＝174.44
2.08＋11＝13.089
0.4＋20＝ 20.4
2.5＋67＋7.5＝77
4.5－3＝1.5
25－0.38＝1.62
5.4＋9.6＝15
5.6－4＝1.6
1.45＋55＝56.45
4.6＋49＋51＝104.6
9.1－7＝2.1
10.3－0.3＝ 10
28＋9.2＝37.2
43.6＋2.08＝45.68
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
0.75＋0.25=1
1.37+1+7.63=10
5.6+2.7+4.4=12.7
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
0.34+0.45=0.79
0.57+0.9=1.47
8-4.6=3.4
0.6-0.37=0.23
4.9+9.8=14.7
39.5+98.8=138.3
1.4+2.8=4.2
1.5+3=4.5
1.6+3.2=4.8
1.7+3.4=5.1
1.8+3.6=5.4
1.9+3.8=5.7
0.2+0.40=0.6
2.1+4.2=6.3
2.2+4.4=6.6
2.3+4.6=6.9
2.4+4.8=7.2
2.5+5=7.5
2.6+5.2=7.8
2.7+5.4=8.1
2.8+5.6=8.4
2.9+5.8=8.7
0.3+0.6=0.9
3.1+6.2=9.3
3.2+6.4=9.6
3.3+6.6=9.9
1-0.3=0.7
1.5-0.4=1.1
2-0.5=1.5
2.5-0.6=1.9
3.0-0.7=2.3
3.5-0.8=2.7
4-0.9=3.1
4.5-1=3.5
5-1.1=3.9
5.5-1.2=4.3
6-1.3=4.7
6.5-1.4=5.1
7-1.5=5.5
7.5-1.6=5.9
8-1.7=6.3
8.5-1.8=6.7
9-1.9=7.1
9.5-2=7.5
10-2.1=7.9
10.5-2.2=8.3
11-2.3=8.7
11.5-2.4=9.1
12-2.5=9.5
12.5-2.6=9.9
13-2.7=10.3
0.2+0.6+0.0.2=1
2.8 + 1.5 + 0.7=5
3.12- 5.6 + 2.9=0.42
4.8- 5.4 + 1.4 =0.8
5.6- 3.8 – 0.38 = 1.42
6.4 + 5.9 + 3.7 = 16
7.5 - 3.2 + 4.5 = 8.8
8.7 + 1.8 + 1.9 = 12.4
9.9 - 5.6 + 5.6 =9.9
10.3 - 8.9 - 1.3= 0.1
11.7 + 5.49 + 3.14= 20.33
12.6 +1.2 + 2.3 = 16.1
13.8 - 4.5 + 11.5 =20.8
14.3 - 5.6 – 5.6 =3.1
15.9 - 2.7 – 10.21 = 2.99
16.5 - 1.8 – 1.4= 13.3
17.4 + 2.5 + 2.3= 22.2
18.4 + 8.7 – 5.6 =21.5
19.1+3.2 – 3.4 = 18.9
20.3 - 2.9 + 1.3= 18.7
21.5 - 2.5 + 3.7= 22.7
22.3 + 2.3 + 1.6= 26.2
23.1 + 2.3 + 5.6= 31
24.9 + 11 - 1.2= 34.7
25.5 - 11.5 + 4.3= 18.3
26.4 - 2.3 + 1.3 = 25.4
27.7 + 1.19 - 5.6= 23.29
28.1 + 3.4 - 2.3= 29.2
29.8 -2.16 + 1.2= 28.84
30.1 + 1.5 – 1.5 =30.1
四年级下册数学简便计算和脱式计算各道两道~
#左柱坚# 简便脱式题50道,跪求50道,如果回答很好,我要四年级下册不带小数点的,就是用简便算法算脱式题,比如说163x12 - 163x2=163x(12 - 2)=163x10=1630大... - 作业帮
(18488687978)：[答案] 1.3/7 * 49/9 - 4/3 2.8/9 * 15/36 + 1/27 3.12* 5/6 – 2/9 *3 4.8* 5/4 + 1/4 5.6÷ 3/8 – 3/8 ÷6 6.4/7 * 5/9 + 3/7 * 5/9 7.5/2 -( 3/2 + 4/5 ) 8.7/8 + ( 1/8 + 1/9 ) 9.9 * 5/6 + 5/6 10.3/4 *...
#左柱坚# 四年级下册脱式计算 -
(18488687978)： 158+262+138 375+219+381+225 5001-247-1021-232 (181+2564)+2719 378+44+114+242+222 276+228+353+219 (375+1034)+(966+125) (2130+783+270)+1017 99+999+9999+99999 7755-(2187+755) 2214+638+286 3065-738-1065 899+...
#左柱坚# 小学四年级巧算(脱式计算) -
(18488687978)： (1)66x21+19x21+85x19 =(66+19)x21+85x19 =85x21+85x19 =85x(21+19) =85x40 =3400 (2)36x111+888x8 =36x111+111x8x8 =36x111+111x64 =(36+64)x111 =100x111 =11100
#左柱坚# 四年级下学期脱式计算 -
(18488687978)： 脱式计算: 360÷[(12+6)*5] 288÷[(26-14)*8] 500*6-(50*2-80) (105*12-635)÷25 864÷[(27-23)*12] (45+38-16)*24 500-(240+38*6) [64-(87-42)] *15 (845-15*3)÷1612*[(49-28)÷7] 450÷[(84-48] )÷12 希望我的答案对你来说能得到帮助!
#左柱坚# 小学四年级下册数学简便计算题 -
(18488687978)： 38*4*25 125*27*8 48*35*2*35 458+251+749 196-26-74 8400÷25÷4 536-249-136 813+569-213 48+52*3 46*32+46*68 94*99+94 101*482-482 16*29+16*48+16*23 67*53-67*43 15*(9+10+8) (6+8)*25 追问: 还有吗 回答: 56*125 48*25 99*28 101*59 102*43 144÷24 320- 198 136-48-36 417-138-62 246-178+78
#左柱坚# 四年级下册第三单元小数简便脱式计算!急急急!!!(加小数点) -
(18488687978)： 小数加减法: 1.8+3.9= 3.7+8.4= 5.6+1.4= 2.9+4.5= 2.8+4.7= 脱式计算: 4.6+2.7-3.1 = = 31.7+2.3+4.9 = = 28.1-3.9+1.6 = = 36.6-2.4-1.9 = = 3.4+1.6+2.9 = = 简便计算: (9.6+10.4)+1.1 = = 10+9.6+10+0.4 = = 9.4+10.6-10 = = 1.4+1.4+2.2 = = 56.8+43.2-10 = =
#左柱坚# 小学四年级下数学简便运算题7道 -
(18488687978)： 常见以下几类题型:一、运用加法结合律进行简算(a+b)+c=a+(b+c) 或a+b+c+d=(a+c)+(b+d) 例1、5.76+13.67+4.24+6.33=(5.76+4.24)+(13.67+6.33)=10+10=20 例2、37.24+23.79-17.24=37.24-17.24+23.79=20+23.79=43.79 二、运用乘法...
#左柱坚# 四年级下册数学脱式计算题 简算 14.72 - 7.4 - 5.28=怎么做 -
(18488687978)： 四年级下册数学脱式计算题 简算 14.72-(7.4-5.28)=14.72+5.28-7.4=20-7.4=12.6
#左柱坚# 四年级下册口算、竖式、简算、脱式 -
(18488687978)： 12.6-12.9=
#左柱坚# 四年级下册“3175 - (550+117)”这道算式用脱式怎样简便运算? -
(18488687978)： 3175-(550+117)= 3175 - 667= 3175 - 675 + 8= 2500 + 8= 2508
5.43－3.06＝2.37
3＋1.2＝4.2
0.12＋5＝5.12
1.2＋1.8＋1.4＝4.4
6.2＋16＋3.8＝26
14－0.6＝13.4
20.3－8＝12.3
50－1.5＋4＝ 53.5
175－0.56＝174.44
2.08＋11＝13.089
0.4＋20＝ 20.4
2.5＋67＋7.5＝77
4.5－3＝1.5
25－0.38＝1.62
5.4＋9.6＝15
5.6－4＝1.6
1.45＋55＝56.45
4.6＋49＋51＝104.6
9.1－7＝2.1
10.3－0.3＝ 10
28＋9.2＝37.2
43.6＋2.08＝45.68
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
0.75＋0.25=1
1.37+1+7.63=10
5.6+2.7+4.4=12.7
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
0.34+0.45=0.79
0.57+0.9=1.47
8-4.6=3.4
0.6-0.37=0.23
4.9+9.8=14.7
39.5+98.8=138.3
1.4+2.8=4.2
1.5+3=4.5
1.6+3.2=4.8
1.7+3.4=5.1
1.8+3.6=5.4
1.9+3.8=5.7
0.2+0.40=0.6
2.1+4.2=6.3
2.2+4.4=6.6
2.3+4.6=6.9
2.4+4.8=7.2
2.5+5=7.5
2.6+5.2=7.8
2.7+5.4=8.1
2.8+5.6=8.4
2.9+5.8=8.7
0.3+0.6=0.9
3.1+6.2=9.3
3.2+6.4=9.6
3.3+6.6=9.9
1-0.3=0.7
1.5-0.4=1.1
2-0.5=1.5
2.5-0.6=1.9
3.0-0.7=2.3
3.5-0.8=2.7
4-0.9=3.1
4.5-1=3.5
5-1.1=3.9
5.5-1.2=4.3
6-1.3=4.7
6.5-1.4=5.1
7-1.5=5.5
7.5-1.6=5.9
8-1.7=6.3
8.5-1.8=6.7
9-1.9=7.1
9.5-2=7.5
10-2.1=7.9
10.5-2.2=8.3
11-2.3=8.7
11.5-2.4=9.1
12-2.5=9.5
12.5-2.6=9.9
13-2.7=10.3
0.2+0.6+0.0.2=1
2.8 + 1.5 + 0.7=5
3.12- 5.6 + 2.9=0.42
4.8- 5.4 + 1.4 =0.8
5.6- 3.8 – 0.38 = 1.42
6.4 + 5.9 + 3.7 = 16
7.5 - 3.2 + 4.5 = 8.8
8.7 + 1.8 + 1.9 = 12.4
9.9 - 5.6 + 5.6 =9.9
10.3 - 8.9 - 1.3= 0.1
11.7 + 5.49 + 3.14= 20.33
12.6 +1.2 + 2.3 = 16.1
13.8 - 4.5 + 11.5 =20.8
14.3 - 5.6 – 5.6 =3.1
15.9 - 2.7 – 10.21 = 2.99
16.5 - 1.8 – 1.4= 13.3
17.4 + 2.5 + 2.3= 22.2
18.4 + 8.7 – 5.6 =21.5
19.1+3.2 – 3.4 = 18.9
20.3 - 2.9 + 1.3= 18.7
21.5 - 2.5 + 3.7= 22.7
22.3 + 2.3 + 1.6= 26.2
23.1 + 2.3 + 5.6= 31
24.9 + 11 - 1.2= 34.7
25.5 - 11.5 + 4.3= 18.3
26.4 - 2.3 + 1.3 = 25.4
27.7 + 1.19 - 5.6= 23.29
28.1 + 3.4 - 2.3= 29.2
29.8 -2.16 + 1.2= 28.841.2＋9＝10.2
5.43－3.06＝2.37
3＋1.2＝4.2
0.12＋5＝5.12
1.2＋1.8＋1.4＝4.4
6.2＋16＋3.8＝26
14－0.6＝13.4
20.3－8＝12.3
50－1.5＋4＝ 53.5
175－0.56＝174.44
2.08＋11＝13.089
0.4＋20＝ 20.4
2.5＋67＋7.5＝77
4.5－3＝1.5
25－0.38＝1.62
5.4＋9.6＝15
5.6－4＝1.6
1.45＋55＝56.45
4.6＋49＋51＝104.6
9.1－7＝2.1
10.3－0.3＝ 10
28＋9.2＝37.2
43.6＋2.08＝45.68
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
0.75＋0.25=1
1.37+1+7.63=10
5.6+2.7+4.4=12.7
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
0.34+0.45=0.79
0.57+0.9=1.47
8-4.6=3.4
0.6-0.37=0.23
4.9+9.8=14.7
39.5+98.8=138.3
1.4+2.8=4.2
1.5+3=4.5
1.6+3.2=4.8
1.7+3.4=5.1
1.8+3.6=5.4
1.9+3.8=5.7
0.2+0.40=0.6
2.1+4.2=6.3
2.2+4.4=6.6
2.3+4.6=6.9
2.4+4.8=7.2
2.5+5=7.5
2.6+5.2=7.8
2.7+5.4=8.1
2.8+5.6=8.4
2.9+5.8=8.7
0.3+0.6=0.9
3.1+6.2=9.3
3.2+6.4=9.6
3.3+6.6=9.9
1-0.3=0.7
1.5-0.4=1.1
2-0.5=1.5
2.5-0.6=1.9
3.0-0.7=2.3
3.5-0.8=2.7
4-0.9=3.1
4.5-1=3.5
5-1.1=3.9
5.5-1.2=4.3
6-1.3=4.7
6.5-1.4=5.1
7-1.5=5.5
7.5-1.6=5.9
8-1.7=6.3
8.5-1.8=6.7
9-1.9=7.1
9.5-2=7.5
10-2.1=7.9
10.5-2.2=8.3
11-2.3=8.7
11.5-2.4=9.1
12-2.5=9.5
12.5-2.6=9.9
13-2.7=10.3
0.2+0.6+0.0.2=1
2.8 + 1.5 + 0.7=5
3.12- 5.6 + 2.9=0.42
4.8- 5.4 + 1.4 =0.8
5.6- 3.8 – 0.38 = 1.42
6.4 + 5.9 + 3.7 = 16
7.5 - 3.2 + 4.5 = 8.8
8.7 + 1.8 + 1.9 = 12.4
9.9 - 5.6 + 5.6 =9.9
10.3 - 8.9 - 1.3= 0.1
11.7 + 5.49 + 3.14= 20.33
12.6 +1.2 + 2.3 = 16.1
13.8 - 4.5 + 11.5 =20.8
14.3 - 5.6 – 5.6 =3.1
15.9 - 2.7 – 10.21 = 2.99
16.5 - 1.8 – 1.4= 13.3
17.4 + 2.5 + 2.3= 22.2
18.4 + 8.7 – 5.6 =21.5
19.1+3.2 – 3.4 = 18.9
20.3 - 2.9 + 1.3= 18.7
21.5 - 2.5 + 3.7= 22.7
22.3 + 2.3 + 1.6= 26.2
23.1 + 2.3 + 5.6= 31
24.9 + 11 - 1.2= 34.7
25.5 - 11.5 + 4.3= 18.3
26.4 - 2.3 + 1.3 = 25.4
27.7 + 1.19 - 5.6= 23.29
28.1 + 3.4 - 2.3= 29.2
29.8 -2.16 + 1.2= 28.84
30.1 + 1.5 – 1.5 =30.1
累死了，记得加分！！！！
123+25=148 123-35=88 56×7=392 135÷5=27
248+89=337 ... 146-23=123 ... 155×5=775 ... 456-12=38...
456+45=501 ...546-457=89 ... 45×10=451 ... 564-12=47...
879+54=933 ...896-546=350 ...56×12=672.... 45-5=9...
457+456=913...
7+14=21 ... 18-9=9...
8+16=24 ... 25-5=20...
9+18=27... 56-45=11... 10+20=30... 45-23=22...
11+22=33... 78-23=55... 12+24=36...
15-4=11 20-5=15 25-6=19 30-7=23 35-8=27 40-9=31 45-10=35 50-11=395512=43 60-13=47 65-14=51 70-15=55 75-16=59 80-17=63 85-18=67 90-19=71 95-20=75 100-21=79
105-22=83
110-23=87
115-24=91
120-25=95
125-26=99
130-27=103
13+26=39...
14+28=42...
15+30=45...
16+32=48...
17+34=51...
18+36=54...
19+38=57...
20+40=60...
21+42=63...
22+44=66...
23+46=69...
24+48=72...
25+50=75...
26+52=78...
27+54=81...
28+56=84...
29+58=87...
30+60=90...
31+62=93...
32+64=96...
33+66=99...
5 ÷1 =5
10 ÷2 =5
15 ÷3 =5
20 ÷4 =5
25 ÷5 =5
30 ÷6 =5
35 ÷7 =5
40 ÷8 =5
45 ÷9 =5
50 ÷10 =5
55 ÷11 =5
60 ÷12 =5
65 ÷13 =5
70 ÷14 =5
75 ÷15 =5
80 ÷16 5
85 ÷17 5 90 ÷18 5 95 ÷19 5 100 ÷20 5
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2 4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35 4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14 30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18 5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4 10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5 8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8 9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
12÷3/5=12×（ 5/3） 9÷6/7=9×（ 7/6 ） 30÷5/6=30×（6/5 ） 4×（3/2 ）=4÷2/3 （ 4 ）÷5/7=4×7/5 3÷4/5=3×5/4 （ 24 ）÷7/16=24×（16/7 ） A÷C/B=A×B/C 4÷4/5=5 6÷3/4=8 10÷2/5=25 18÷4/9=81/2 4×4/5=16/5 6×3/4=18/4 10×2/5=4 18×4/9=8 3÷3/4=4 2÷1/3=6 6÷4/5=15/2 1÷5/7=7/5 3/4÷3=1/4 1/3÷2=1/6 4/5÷6=2/15 5/7÷1=5/7
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
17×40＝680, 100－63＝37, 3.2＋1.68＝4.88, 2.8×0.4＝ 1.12
14－7.4＝6.6, 1.92÷0.04＝48, 0.32×500＝160, 0.65＋4.35＝ 5
10－5.4＝4.6, 4÷20＝0.2, 3.5×200＝700, 1.5－0.06＝1.44
0.75÷15＝0.05, 0.4×0.8＝0.32, 4×0.25＝1, 0.36＋1.54＝2
1.01×99＝99.99, 420÷35＝12, 25×12＝300, 135÷0.5＝270
3/4 + 1/4 =1, 2 + 4/9 =22/9, 3 - 2/3 =7/3, 3/4 - 1/2= 1/4
1/6 + 1/2 -1/6 =1/2, 7.5-(2.5+3.8)=1.2, 7/8 + 3/8 =5/4
3/10 +1/5 =1/2, 4/5 - 7/10 =1/10, 2 - 1/6 -1/3 =1.5
0.51÷17＝0.03, 32.8＋19＝51.8, 5.2÷1.3＝4, 1.6×0.4＝ 0.64
4.9×0.7＝3.43, 1÷5＝0.2, 6÷12＝0.5, 0.87－0.49＝0.38
1.(1+1/2)(1+1/3)(1+1/4)......(1+1/100)
2.(1-1/2)(1-1/3)(1-1/4)......(1-1/100)
3.8+2-8+2
4.25*4/25*4
5.7.26-(5.26-1.5)
6.286+198
7.314-202
8.526+301
9.223-99
10.6.25+3.85-2.125+3.875
11.9-2456*21
12.0.5/11.5-4*2.75
13.1/2×3/5
14.3.375+5.75+2.25+6.625
15.1001－9036÷18
16.3.8×5.25+14.5
17.2.1*4.3+5.7*2.1
18.30×1/3
19.102*45-328
20.2/3×12
21.2.8*3.1+17.6/8
22.3/5×5/6
23.(50-12.5)/2.5
24.2/5×1/3
25.6110*47+639
26.1/2-1/6
27.3.5*2.7-52.2/18
28.1/7×1/5
29.3.375*0.97+0.97*6.625
30.25×4/5
31.6.54+2.4+3.46+0.6
32.5/6-1/2
33.95.6*1.8+95.6*8.2
34.1/2×1/5
35.600-420/12
36.344/3.6-5.4*0.25
37.16/2+30/2+90/6
38.3001-1998.
39.5000-105*34
40.0.15/0.25+0.75*1.2
41.(1/2+1/3+1/4)*0.24
42.(25+4)*4
43.300-4263/21
44.0.81/0.25+5.96
45.403÷13×27
46.1.5×4.2－0.75÷0.25
47.3.27×4 +3.27×5.7
48.（1.2+ 1.8）×4.51025－768÷32
49.0.25×80－0.45÷0.9
50.1025－768÷32
51.0.25*2.69*4
52.2348+275*16
53.2/9*15/8-1/12*9/5
54.2.4+2.4*(5.375-3.375)
55.645-45*12
56.0.15+1.2/0.24-0.45
57.3.75-(2.35+0.25/1.25)
58.76*1/4+23*25/100+0.25
59.10-2.87-7.13
60.0.96+9.6*9.9
61.7.5-5.7*1/3
62.12.37-3.25-6.75
63.16*6.8+2.2*16+16
64.401*19+284
65.58.7-16.65/3.7
66.0.4*4.7*2.5+(2.3+5.3)
67.9.31-1.125-7.875
68.640+128*45
69.8.2*1.6-0.336/4.2
70.400*(0.62+0.08)
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
没小数
123+25=148 123-35=88 56×7=392 135÷5=27
248+89=337 ... 146-23=123 ... 155×5=775 ... 456-12=38...
456+45=501 ...546-457=89 ... 45×10=451 ... 564-12=47...
879+54=933 ...896-546=350 ...56×12=672.... 45-5=9...
457+456=913...
7+14=21 ... 18-9=9...
8+16=24 ... 25-5=20...
9+18=27... 56-45=11...
10+20=30... 45-23=22...
11+22=33... 78-23=55...
12+24=36...
10-3=7
15-4=11
20-5=15
25-6=19
30-7=23
35-8=27
40-9=31
45-10=35
50-11=39
55-12=43
60-13=47
65-14=51
70-15=55
75-16=59
80-17=63
85-18=67
90-19=71
95-20=75
100-21=79
105-22=83
110-23=87
115-24=91
120-25=95
125-26=99
130-27=103
13+26=39...
14+28=42...
15+30=45...
16+32=48...
17+34=51...
18+36=54...
19+38=57...
20+40=60...
21+42=63...
22+44=66...
23+46=69...
24+48=72...
25+50=75...
26+52=78...
27+54=81...
28+56=84...
29+58=87...
30+60=90...
31+62=93...
32+64=96...
33+66=99...
5 ÷1 =5
10 ÷2 =5
15 ÷3 =5
20 ÷4 =5
25 ÷5 =5
30 ÷6 =5
35 ÷7 =5
40 ÷8 =5
45 ÷9 =5
50 ÷10 =5
55 ÷11 =5
60 ÷12 =5
65 ÷13 =5
70 ÷14 =5
75 ÷15 =5
80 ÷16 5
85 ÷17 5
90 ÷18 5
95 ÷19 5
100 ÷20 5
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2 4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35 4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14 30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18 5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4 10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5 8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8 9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
12÷3/5=12×（ 5/3） 9÷6/7=9×（ 7/6 ） 30÷5/6=30×（6/5 ） 4×（3/2 ）=4÷2/3 （ 4 ）÷5/7=4×7/5 3÷4/5=3×5/4 （ 24 ）÷7/16=24×（16/7 ） A÷C/B=A×B/C 4÷4/5=5 6÷3/4=8 10÷2/5=25 18÷4/9=81/2 4×4/5=16/5 6×3/4=18/4 10×2/5=4 18×4/9=8 3÷3/4=4 2÷1/3=6 6÷4/5=15/2 1÷5/7=7/5 3/4÷3=1/4 1/3÷2=1/6 4/5÷6=2/15 5/7÷1=5/7
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
17×40＝680, 100－63＝37, 3.2＋1.68＝4.88, 2.8×0.4＝ 1.12
14－7.4＝6.6, 1.92÷0.04＝48, 0.32×500＝160, 0.65＋4.35＝ 5
10－5.4＝4.6, 4÷20＝0.2, 3.5×200＝700, 1.5－0.06＝1.44
0.75÷15＝0.05, 0.4×0.8＝0.32, 4×0.25＝1, 0.36＋1.54＝2
1.01×99＝99.99, 420÷35＝12, 25×12＝300, 135÷0.5＝270
3/4 + 1/4 =1, 2 + 4/9 =22/9, 3 - 2/3 =7/3, 3/4 - 1/2= 1/4
1/6 + 1/2 -1/6 =1/2, 7.5-(2.5+3.8)=1.2, 7/8 + 3/8 =5/4
3/10 +1/5 =1/2, 4/5 - 7/10 =1/10, 2 - 1/6 -1/3 =1.5
0.51÷17＝0.03, 32.8＋19＝51.8, 5.2÷1.3＝4, 1.6×0.4＝ 0.64
4.9×0.7＝3.43, 1÷5＝0.2, 6÷12＝0.5, 0.87－0.49＝0.38
1.(1+1/2)(1+1/3)(1+1/4)......(1+1/100)
2.(1-1/2)(1-1/3)(1-1/4)......(1-1/100)
3.8+2-8+2
4.25*4/25*4
5.7.26-(5.26-1.5)
6.286+198
7.314-202
8.526+301
9.223-99
10.6.25+3.85-2.125+3.875
11.9-2456*21
12.0.5/11.5-4*2.75
13.1/2×3/5
14.3.375+5.75+2.25+6.625
15.1001－9036÷18
16.3.8×5.25+14.5
17.2.1*4.3+5.7*2.1
18.30×1/3
19.102*45-328
20.2/3×12
21.2.8*3.1+17.6/8
22.3/5×5/6
23.(50-12.5)/2.5
24.2/5×1/3
25.6110*47+639
26.1/2-1/6
27.3.5*2.7-52.2/18
28.1/7×1/5
29.3.375*0.97+0.97*6.625
30.25×4/5
31.6.54+2.4+3.46+0.6
32.5/6-1/2
33.95.6*1.8+95.6*8.2
34.1/2×1/5
35.600-420/12
36.344/3.6-5.4*0.25
37.16/2+30/2+90/6
38.3001-1998.
39.5000-105*34
40.0.15/0.25+0.75*1.2
41.(1/2+1/3+1/4)*0.24
42.(25+4)*4
43.300-4263/21
44.0.81/0.25+5.96
45.403÷13×27
46.1.5×4.2－0.75÷0.25
47.3.27×4 +3.27×5.7
48.（1.2+ 1.8）×4.51025－768÷32
49.0.25×80－0.45÷0.9
50.1025－768÷32
51.0.25*2.69*4
52.2348+275*16
53.2/9*15/8-1/12*9/5
54.2.4+2.4*(5.375-3.375)
55.645-45*12
56.0.15+1.2/0.24-0.45
57.3.75-(2.35+0.25/1.25)
58.76*1/4+23*25/100+0.25
59.10-2.87-7.13
60.0.96+9.6*9.9
61.7.5-5.7*1/3
62.12.37-3.25-6.75
63.16*6.8+2.2*16+16
64.401*19+284
65.58.7-16.65/3.7
66.0.4*4.7*2.5+(2.3+5.3)
67.9.31-1.125-7.875
68.640+128*45
69.8.2*1.6-0.336/4.2
70.400*(0.62+0.08)
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
123+25=148 123-35=88 56×7=392 135÷5=27
248+89=337 ... 146-23=123 ... 155×5=775 ... 456-12=38...
456+45=501 ...546-457=89 ... 45×10=451 ... 564-12=47...
879+54=933 ...896-546=350 ...56×12=672.... 45-5=9...
457+456=913...
7+14=21 ... 18-9=9...
8+16=24 ... 25-5=20...
9+18=27... 56-45=11...
10+20=30... 45-23=22...
11+22=33... 78-23=55...
12+24=36...
10-3=7
15-4=11
20-5=15
25-6=19
30-7=23
35-8=27
40-9=31
45-10=35
50-11=39
55-12=43
60-13=47
65-14=51
70-15=55
75-16=59
80-17=63
85-18=67
90-19=71
95-20=75
100-21=79
105-22=83
110-23=87
115-24=91
120-25=95
125-26=99
130-27=103
13+26=39...
14+28=42...
15+30=45...
16+32=48...
17+34=51...
18+36=54...
19+38=57...
20+40=60...
21+42=63...
22+44=66...
23+46=69...
24+48=72...
25+50=75...
26+52=78...
27+54=81...
28+56=84...
29+58=87...
30+60=90...
31+62=93...
32+64=96...
33+66=99...
5 ÷1 =5
10 ÷2 =5
15 ÷3 =5
20 ÷4 =5
25 ÷5 =5
30 ÷6 =5
35 ÷7 =5
40 ÷8 =5
45 ÷9 =5
50 ÷10 =5
55 ÷11 =5
60 ÷12 =5
65 ÷13 =5
70 ÷14 =5
75 ÷15 =5
80 ÷16 5
85 ÷17 5
90 ÷18 5
95 ÷19 5
100 ÷20 5
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2 4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35 4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14 30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18 5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4 10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5 8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8 9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
12÷3/5=12×（ 5/3） 9÷6/7=9×（ 7/6 ） 30÷5/6=30×（6/5 ） 4×（3/2 ）=4÷2/3 （ 4 ）÷5/7=4×7/5 3÷4/5=3×5/4 （ 24 ）÷7/16=24×（16/7 ） A÷C/B=A×B/C 4÷4/5=5 6÷3/4=8 10÷2/5=25 18÷4/9=81/2 4×4/5=16/5 6×3/4=18/4 10×2/5=4 18×4/9=8 3÷3/4=4 2÷1/3=6 6÷4/5=15/2 1÷5/7=7/5 3/4÷3=1/4 1/3÷2=1/6 4/5÷6=2/15 5/7÷1=5/7
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
17×40＝680, 100－63＝37, 3.2＋1.68＝4.88, 2.8×0.4＝ 1.12
14－7.4＝6.6, 1.92÷0.04＝48, 0.32×500＝160, 0.65＋4.35＝ 5
10－5.4＝4.6, 4÷20＝0.2, 3.5×200＝700, 1.5－0.06＝1.44
0.75÷15＝0.05, 0.4×0.8＝0.32, 4×0.25＝1, 0.36＋1.54＝2
1.01×99＝99.99, 420÷35＝12, 25×12＝300, 135÷0.5＝270
3/4 + 1/4 =1, 2 + 4/9 =22/9, 3 - 2/3 =7/3, 3/4 - 1/2= 1/4
1/6 + 1/2 -1/6 =1/2, 7.5-(2.5+3.8)=1.2, 7/8 + 3/8 =5/4
3/10 +1/5 =1/2, 4/5 - 7/10 =1/10, 2 - 1/6 -1/3 =1.5
0.51÷17＝0.03, 32.8＋19＝51.8, 5.2÷1.3＝4, 1.6×0.4＝ 0.64
4.9×0.7＝3.43, 1÷5＝0.2, 6÷12＝0.5, 0.87－0.49＝0.38
回答者：370116 - 武林盟主 十六级 2-25 14:34
1.(1+1/2)(1+1/3)(1+1/4)......(1+1/100)
2.(1-1/2)(1-1/3)(1-1/4)......(1-1/100)
3.8+2-8+2
4.25*4/25*4
5.7.26-(5.26-1.5)
6.286+198
7.314-202
8.526+301
9.223-99
10.6.25+3.85-2.125+3.875
11.9-2456*21
12.0.5/11.5-4*2.75
13.1/2×3/5
14.3.375+5.75+2.25+6.625
15.1001－9036÷18
16.3.8×5.25+14.5
17.2.1*4.3+5.7*2.1
18.30×1/3
19.102*45-328
20.2/3×12
21.2.8*3.1+17.6/8
22.3/5×5/6
23.(50-12.5)/2.5
24.2/5×1/3
25.6110*47+639
26.1/2-1/6
27.3.5*2.7-52.2/18
28.1/7×1/5
29.3.375*0.97+0.97*6.625
30.25×4/5
31.6.54+2.4+3.46+0.6
32.5/6-1/2
33.95.6*1.8+95.6*8.2
34.1/2×1/5
35.600-420/12
36.344/3.6-5.4*0.25
37.16/2+30/2+90/6
38.3001-1998.
39.5000-105*34
40.0.15/0.25+0.75*1.2
41.(1/2+1/3+1/4)*0.24
42.(25+4)*4
43.300-4263/21
44.0.81/0.25+5.96
45.403÷13×27
46.1.5×4.2－0.75÷0.25
47.3.27×4 +3.27×5.7
48.（1.2+ 1.8）×4.51025－768÷32
49.0.25×80－0.45÷0.9
50.1025－768÷32
51.0.25*2.69*4
52.2348+275*16
53.2/9*15/8-1/12*9/5
54.2.4+2.4*(5.375-3.375)
55.645-45*12
56.0.15+1.2/0.24-0.45
57.3.75-(2.35+0.25/1.25)
58.76*1/4+23*25/100+0.25
59.10-2.87-7.13
60.0.96+9.6*9.9
61.7.5-5.7*1/3
62.12.37-3.25-6.75
63.16*6.8+2.2*16+16
64.401*19+284
65.58.7-16.65/3.7
66.0.4*4.7*2.5+(2.3+5.3)
67.9.31-1.125-7.875
68.640+128*45
69.8.2*1.6-0.336/4.2
70.400*(0.62+0.08)
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
123+25=148 123-35=88 56×7=392 135÷5=27
248+89=337 ... 146-23=123 ... 155×5=775 ... 456-12=38...
456+45=501 ...546-457=89 ... 45×10=451 ... 564-12=47...
879+54=933 ...896-546=350 ...56×12=672.... 45-5=9...
457+456=913...
7+14=21 ... 18-9=9...
8+16=24 ... 25-5=20...
9+18=27... 56-45=11...
10+20=30... 45-23=22...
11+22=33... 78-23=55...
12+24=36...
10-3=7
15-4=11
20-5=15
25-6=19
30-7=23
35-8=27
40-9=31
45-10=35
50-11=39
55-12=43
60-13=47
65-14=51
70-15=55
75-16=59
80-17=63
85-18=67
90-19=71
95-20=75
100-21=79
105-22=83
110-23=87
115-24=91
120-25=95
125-26=99
130-27=103
13+26=39...
14+28=42...
15+30=45...
16+32=48...
17+34=51...
18+36=54...
19+38=57...
20+40=60...
21+42=63...
22+44=66...
23+46=69...
24+48=72...
25+50=75...
26+52=78...
27+54=81...
28+56=84...
29+58=87...
30+60=90...
31+62=93...
32+64=96...
33+66=99...
5 ÷1 =5
10 ÷2 =5
15 ÷3 =5
20 ÷4 =5
25 ÷5 =5
30 ÷6 =5
35 ÷7 =5
40 ÷8 =5
45 ÷9 =5
50 ÷10 =5
55 ÷11 =5
60 ÷12 =5
65 ÷13 =5
70 ÷14 =5
75 ÷15 =5
80 ÷16 5
85 ÷17 5
90 ÷18 5
95 ÷19 5
100 ÷20 5
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2 4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35 4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14 30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18 5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4 10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5 8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8 9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
12÷3/5=12×（ 5/3） 9÷6/7=9×（ 7/6 ） 30÷5/6=30×（6/5 ） 4×（3/2 ）=4÷2/3 （ 4 ）÷5/7=4×7/5 3÷4/5=3×5/4 （ 24 ）÷7/16=24×（16/7 ） A÷C/B=A×B/C 4÷4/5=5 6÷3/4=8 10÷2/5=25 18÷4/9=81/2 4×4/5=16/5 6×3/4=18/4 10×2/5=4 18×4/9=8 3÷3/4=4 2÷1/3=6 6÷4/5=15/2 1÷5/7=7/5 3/4÷3=1/4 1/3÷2=1/6 4/5÷6=2/15 5/7÷1=5/7
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
27÷9=3
53+8=61
4×9=36
8÷2=4
32÷8=4
8÷1=8
9×9=81
84+7=91
80－44=36
1800－900=900
4900－1800=3100
420+80=500
430+1000= 1430
500－60= 440
89－8= 81
64－8= 56
34+9= 43
14÷7= 2
5+58= 63
64÷8= 8
6×3= 18
9×9= 81
72÷8= 9
78+15= 93
83－20= 63
43－30= 13
9÷1= 9
280+450= 730
7÷7= 1
3600+5800= 9400
8×9+21= 93
4600+4700= 9300
730－190= 540
3700－370= 3330
8500－5500= 3000
3200+5100= 8300
96－42= 54
1200－400= 800
830－300= 530
800+900= 1700
58－36= 22
7000+3000= 100000
5×7= 35
72÷9= 8
36÷6= 6
81÷9= 9
42+13= 55
24÷3= 8
24+8= 32
27－3= 24
42+13= 55
42－6= 36
7+44= 51
42÷7= 6
64－8= 56
21÷3= 7
4×8= 32
54÷9= 6
49÷7= 7
42÷7= 6
35÷7= 5
19+41= 60
24－6×3=6
4×8－5= 27
27÷3+6= 15
56÷7－3= 5
49÷9+7= （小数点后几位）
4×3÷2= 6
6÷3×7= 14
8÷4×3= 6
6×5+37= 67
12÷4+18= 21
16÷4×8= 32
8÷4+48= 50
25÷5+36= 41
6×8—42= 6
2×8÷4= 4
8×9÷9= 8
36÷6÷3= 2
9÷9×6= 6
42÷7×6= 36
96－80+7= 23
64－40－8= 16
40－4+20= 56
7×5－8= 27
14÷7+25= 27
15÷5+8= 11
8×9－8= 64
1×2+20= 22
16÷8+30 =32
7×7+8= 57
54÷6+33= 42
510+200= 710
15－45÷9= 10
11－40÷8= 6
7+1×8= 15
130+80= 210
46－8= 38
8×5－7= 33
9×3－8= 19
30÷6= 5
36÷4= 9
4×5+44=64
48÷8+7= 13
1800+200= 2000
93－80= 13
6×5+37= 67
10－8÷1= 2
7×8= 56
73－4= 69
3×8÷4= 6
7×6+10= 23
72÷8= 9
64－8= 58
24×0= 0
71－7+30= 94
6＋2×8 =22
35－9= 26
70－5×9= 25
8×9+21= 93
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
1.2＋9＝10.2
5.43－3.06＝2.37
3＋1.2＝4.2
0.12＋5＝5.12
1.2＋1.8＋1.4＝4.4
6.2＋16＋3.8＝26
14－0.6＝13.4
20.3－8＝12.3
50－1.5＋4＝ 53.5
175－0.56＝174.44
2.08＋11＝13.089
0.4＋20＝ 20.4
2.5＋67＋7.5＝77
4.5－3＝1.5
25－0.38＝1.62
5.4＋9.6＝15
5.6－4＝1.6
1.45＋55＝56.45
4.6＋49＋51＝104.6
9.1－7＝2.1
10.3－0.3＝ 10
28＋9.2＝37.2
43.6＋2.08＝45.68
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
0.75＋0.25=1
1.37+1+7.63=10
5.6+2.7+4.4=12.7
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
0.34+0.45=0.79
0.57+0.9=1.47
8-4.6=3.4
0.6-0.37=0.23
4.9+9.8=14.7
39.5+98.8=138.3
1.4+2.8=4.2
1.5+3=4.5
1.6+3.2=4.8
1.7+3.4=5.1
1.8+3.6=5.4
1.9+3.8=5.7
0.2+0.40=0.6
2.1+4.2=6.3
2.2+4.4=6.6
2.3+4.6=6.9
2.4+4.8=7.2
2.5+5=7.5
2.6+5.2=7.8
2.7+5.4=8.1
2.8+5.6=8.4
2.9+5.8=8.7
0.3+0.6=0.9
3.1+6.2=9.3
3.2+6.4=9.6
3.3+6.6=9.9
1-0.3=0.7
1.5-0.4=1.1
2-0.5=1.5
2.5-0.6=1.9
3.0-0.7=2.3
3.5-0.8=2.7
4-0.9=3.1
4.5-1=3.5
5-1.1=3.9
5.5-1.2=4.3
6-1.3=4.7
6.5-1.4=5.1
7-1.5=5.5
7.5-1.6=5.9
8-1.7=6.3
8.5-1.8=6.7
9-1.9=7.1
9.5-2=7.5
10-2.1=7.9
10.5-2.2=8.3
11-2.3=8.7
11.5-2.4=9.1
12-2.5=9.5
12.5-2.6=9.9
13-2.7=10.3
0.2+0.6+0.0.2=1
2.8 + 1.5 + 0.7=5
3.12- 5.6 + 2.9=0.42
4.8- 5.4 + 1.4 =0.8
5.6- 3.8 – 0.38 = 1.42
6.4 + 5.9 + 3.7 = 16
7.5 - 3.2 + 4.5 = 8.8
8.7 + 1.8 + 1.9 = 12.4
9.9 - 5.6 + 5.6 =9.9
10.3 - 8.9 - 1.3= 0.1
11.7 + 5.49 + 3.14= 20.33
12.6 +1.2 + 2.3 = 16.1
13.8 - 4.5 + 11.5 =20.8
14.3 - 5.6 – 5.6 =3.1
15.9 - 2.7 – 10.21 = 2.99
16.5 - 1.8 – 1.4= 13.3
17.4 + 2.5 + 2.3= 22.2
18.4 + 8.7 – 5.6 =21.5
19.1+3.2 – 3.4 = 18.9
20.3 - 2.9 + 1.3= 18.7
21.5 - 2.5 + 3.7= 22.7
22.3 + 2.3 + 1.6= 26.2
23.1 + 2.3 + 5.6= 31
24.9 + 11 - 1.2= 34.7
25.5 - 11.5 + 4.3= 18.3
26.4 - 2.3 + 1.3 = 25.4
27.7 + 1.19 - 5.6= 23.29
28.1 + 3.4 - 2.3= 29.2
29.8 -2.16 + 1.2= 28.841.2＋9＝10.2
5.43－3.06＝2.37
3＋1.2＝4.2
0.12＋5＝5.12
1.2＋1.8＋1.4＝4.4
6.2＋16＋3.8＝26
14－0.6＝13.4
20.3－8＝12.3
50－1.5＋4＝ 53.5
175－0.56＝174.44
2.08＋11＝13.089
0.4＋20＝ 20.4
2.5＋67＋7.5＝77
4.5－3＝1.5
25－0.38＝1.62
5.4＋9.6＝15
5.6－4＝1.6
1.45＋55＝56.45
4.6＋49＋51＝104.6
9.1－7＝2.1
10.3－0.3＝ 10
28＋9.2＝37.2
43.6＋2.08＝45.68
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
0.75＋0.25=1
1.37+1+7.63=10
5.6+2.7+4.4=12.7
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
0.34+0.45=0.79
0.57+0.9=1.47
8-4.6=3.4
0.6-0.37=0.23
4.9+9.8=14.7
39.5+98.8=138.3
1.4+2.8=4.2
1.5+3=4.5
1.6+3.2=4.8
1.7+3.4=5.1
1.8+3.6=5.4
1.9+3.8=5.7
0.2+0.40=0.6
2.1+4.2=6.3
2.2+4.4=6.6
2.3+4.6=6.9
2.4+4.8=7.2
2.5+5=7.5
2.6+5.2=7.8
2.7+5.4=8.1
2.8+5.6=8.4
2.9+5.8=8.7
0.3+0.6=0.9
3.1+6.2=9.3
3.2+6.4=9.6
3.3+6.6=9.9
1-0.3=0.7
1.5-0.4=1.1
2-0.5=1.5
2.5-0.6=1.9
3.0-0.7=2.3
3.5-0.8=2.7
4-0.9=3.1
4.5-1=3.5
5-1.1=3.9
5.5-1.2=4.3
6-1.3=4.7
6.5-1.4=5.1
7-1.5=5.5
7.5-1.6=5.9
8-1.7=6.3
8.5-1.8=6.7
9-1.9=7.1
9.5-2=7.5
10-2.1=7.9
10.5-2.2=8.3
11-2.3=8.7
11.5-2.4=9.1
12-2.5=9.5
12.5-2.6=9.9
13-2.7=10.3
0.2+0.6+0.0.2=1
2.8 + 1.5 + 0.7=5
3.12- 5.6 + 2.9=0.42
4.8- 5.4 + 1.4 =0.8
5.6- 3.8 – 0.38 = 1.42
6.4 + 5.9 + 3.7 = 16
7.5 - 3.2 + 4.5 = 8.8
8.7 + 1.8 + 1.9 = 12.4
9.9 - 5.6 + 5.6 =9.9
10.3 - 8.9 - 1.3= 0.1
11.7 + 5.49 + 3.14= 20.33
12.6 +1.2 + 2.3 = 16.1
13.8 - 4.5 + 11.5 =20.8
14.3 - 5.6 – 5.6 =3.1
15.9 - 2.7 – 10.21 = 2.99
16.5 - 1.8 – 1.4= 13.3
17.4 + 2.5 + 2.3= 22.2
18.4 + 8.7 – 5.6 =21.5
19.1+3.2 – 3.4 = 18.9
20.3 - 2.9 + 1.3= 18.7
21.5 - 2.5 + 3.7= 22.7
22.3 + 2.3 + 1.6= 26.2
23.1 + 2.3 + 5.6= 31
24.9 + 11 - 1.2= 34.7
25.5 - 11.5 + 4.3= 18.3
26.4 - 2.3 + 1.3 = 25.4
27.7 + 1.19 - 5.6= 23.29
28.1 + 3.4 - 2.3= 29.2
29.8 -2.16 + 1.2= 28.84
30.1 + 1.5 – 1.5 =30.1
累死了，记得加分！！！！
1.2＋9＝10.2
5.43－3.06＝2.37
3＋1.2＝4.2
0.12＋5＝5.12
1.2＋1.8＋1.4＝4.4
6.2＋16＋3.8＝26
14－0.6＝13.4
20.3－8＝12.3
50－1.5＋4＝ 53.5
175－0.56＝174.44
2.08＋11＝13.089
0.4＋20＝ 20.4
2.5＋67＋7.5＝77
4.5－3＝1.5
25－0.38＝1.62
5.4＋9.6＝15
5.6－4＝1.6
1.45＋55＝56.45
4.6＋49＋51＝104.6
9.1－7＝2.1
10.3－0.3＝ 10
28＋9.2＝37.2
43.6＋2.08＝45.68
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
0.75＋0.25=1
1.37+1+7.63=10
5.6+2.7+4.4=12.7
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
0.34+0.45=0.79
0.57+0.9=1.47
8-4.6=3.4
0.6-0.37=0.23
4.9+9.8=14.7
39.5+98.8=138.3
1.4+2.8=4.2
1.5+3=4.5
1.6+3.2=4.8
1.7+3.4=5.1
1.8+3.6=5.4
1.9+3.8=5.7
0.2+0.40=0.6
2.1+4.2=6.3
2.2+4.4=6.6
2.3+4.6=6.9
2.4+4.8=7.2
2.5+5=7.5
2.6+5.2=7.8
2.7+5.4=8.1
2.8+5.6=8.4
2.9+5.8=8.7
0.3+0.6=0.9
3.1+6.2=9.3
3.2+6.4=9.6
3.3+6.6=9.9
1-0.3=0.7
1.5-0.4=1.1
2-0.5=1.5
2.5-0.6=1.9
3.0-0.7=2.3
3.5-0.8=2.7
4-0.9=3.1
4.5-1=3.5
5-1.1=3.9
5.5-1.2=4.3
6-1.3=4.7
6.5-1.4=5.1
7-1.5=5.5
7.5-1.6=5.9
8-1.7=6.3
8.5-1.8=6.7
9-1.9=7.1
9.5-2=7.5
10-2.1=7.9
10.5-2.2=8.3
11-2.3=8.7
11.5-2.4=9.1
12-2.5=9.5
12.5-2.6=9.9
13-2.7=10.3
0.2+0.6+0.0.2=1
2.8 + 1.5 + 0.7=5
3.12- 5.6 + 2.9=0.42
4.8- 5.4 + 1.4 =0.8
5.6- 3.8 – 0.38 = 1.42
6.4 + 5.9 + 3.7 = 16
7.5 - 3.2 + 4.5 = 8.8
8.7 + 1.8 + 1.9 = 12.4
9.9 - 5.6 + 5.6 =9.9
10.3 - 8.9 - 1.3= 0.1
11.7 + 5.49 + 3.14= 20.33
12.6 +1.2 + 2.3 = 16.1
13.8 - 4.5 + 11.5 =20.8
14.3 - 5.6 – 5.6 =3.1
15.9 - 2.7 – 10.21 = 2.99
16.5 - 1.8 – 1.4= 13.3
17.4 + 2.5 + 2.3= 22.2
18.4 + 8.7 – 5.6 =21.5
19.1+3.2 – 3.4 = 18.9
20.3 - 2.9 + 1.3= 18.7
21.5 - 2.5 + 3.7= 22.7
22.3 + 2.3 + 1.6= 26.2
23.1 + 2.3 + 5.6= 31
24.9 + 11 - 1.2= 34.7
25.5 - 11.5 + 4.3= 18.3
26.4 - 2.3 + 1.3 = 25.4
27.7 + 1.19 - 5.6= 23.29
28.1 + 3.4 - 2.3= 29.2
29.8 -2.16 + 1.2= 28.841.2＋9＝10.2
5.43－3.06＝2.37
3＋1.2＝4.2
0.12＋5＝5.12
1.2＋1.8＋1.4＝4.4
6.2＋16＋3.8＝26
14－0.6＝13.4
20.3－8＝12.3
50－1.5＋4＝ 53.5
175－0.56＝174.44
2.08＋11＝13.089
0.4＋20＝ 20.4
2.5＋67＋7.5＝77
4.5－3＝1.5
25－0.38＝1.62
5.4＋9.6＝15
5.6－4＝1.6
1.45＋55＝56.45
4.6＋49＋51＝104.6
9.1－7＝2.1
10.3－0.3＝ 10
28＋9.2＝37.2
43.6＋2.08＝45.68
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
0.75＋0.25=1
1.37+1+7.63=10
5.6+2.7+4.4=12.7
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
0.34+0.45=0.79
0.57+0.9=1.47
8-4.6=3.4
0.6-0.37=0.23
4.9+9.8=14.7
39.5+98.8=138.3
1.4+2.8=4.2
1.5+3=4.5
1.6+3.2=4.8
1.7+3.4=5.1
1.8+3.6=5.4
1.9+3.8=5.7
0.2+0.40=0.6
2.1+4.2=6.3
2.2+4.4=6.6
2.3+4.6=6.9
2.4+4.8=7.2
2.5+5=7.5
2.6+5.2=7.8
2.7+5.4=8.1
2.8+5.6=8.4
2.9+5.8=8.7
0.3+0.6=0.9
3.1+6.2=9.3
3.2+6.4=9.6
3.3+6.6=9.9
1-0.3=0.7
1.5-0.4=1.1
2-0.5=1.5
2.5-0.6=1.9
3.0-0.7=2.3
3.5-0.8=2.7
4-0.9=3.1
4.5-1=3.5
5-1.1=3.9
5.5-1.2=4.3
6-1.3=4.7
6.5-1.4=5.1
7-1.5=5.5
7.5-1.6=5.9
8-1.7=6.3
8.5-1.8=6.7
9-1.9=7.1
9.5-2=7.5
10-2.1=7.9
10.5-2.2=8.3
11-2.3=8.7
11.5-2.4=9.1
12-2.5=9.5
12.5-2.6=9.9
13-2.7=10.3
0.2+0.6+0.0.2=1
2.8 + 1.5 + 0.7=5
3.12- 5.6 + 2.9=0.42
4.8- 5.4 + 1.4 =0.8
5.6- 3.8 – 0.38 = 1.42
6.4 + 5.9 + 3.7 = 16
7.5 - 3.2 + 4.5 = 8.8
8.7 + 1.8 + 1.9 = 12.4
9.9 - 5.6 + 5.6 =9.9
10.3 - 8.9 - 1.3= 0.1
11.7 + 5.49 + 3.14= 20.33
12.6 +1.2 + 2.3 = 16.1
13.8 - 4.5 + 11.5 =20.8
14.3 - 5.6 – 5.6 =3.1
15.9 - 2.7 – 10.21 = 2.99
16.5 - 1.8 – 1.4= 13.3
17.4 + 2.5 + 2.3= 22.2
18.4 + 8.7 – 5.6 =21.5
19.1+3.2 – 3.4 = 18.9
20.3 - 2.9 + 1.3= 18.7
21.5 - 2.5 + 3.7= 22.7
22.3 + 2.3 + 1.6= 26.2
23.1 + 2.3 + 5.6= 31
24.9 + 11 - 1.2= 34.7
25.5 - 11.5 + 4.3= 18.3
26.4 - 2.3 + 1.3 = 25.4
27.7 + 1.19 - 5.6= 23.29
28.1 + 3.4 - 2.3= 29.2
29.8 -2.16 + 1.2= 28.84
30.1 + 1.5 – 1.5 =30.1
累死了
1.2＋9＝10.2
5.43－3.06＝2.37
3＋1.2＝4.2
0.12＋5＝5.12
1.2＋1.8＋1.4＝4.4
6.2＋16＋3.8＝26
14－0.6＝13.4
20.3－8＝12.3
50－1.5＋4＝ 53.5
175－0.56＝174.44
2.08＋11＝13.089
0.4＋20＝ 20.4
2.5＋67＋7.5＝77
4.5－3＝1.5
25－0.38＝1.62
5.4＋9.6＝15
5.6－4＝1.6
1.45＋55＝56.45
4.6＋49＋51＝104.6
9.1－7＝2.1
10.3－0.3＝ 10
28＋9.2＝37.2
43.6＋2.08＝45.68
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
0.75＋0.25=1
1.37+1+7.63=10
5.6+2.7+4.4=12.7
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
0.34+0.45=0.79
0.57+0.9=1.47
8-4.6=3.4
0.6-0.37=0.23
4.9+9.8=14.7
39.5+98.8=138.3
1.4+2.8=4.2
1.5+3=4.5
1.6+3.2=4.8
1.7+3.4=5.1
1.8+3.6=5.4
1.9+3.8=5.7
0.2+0.40=0.6
2.1+4.2=6.3
2.2+4.4=6.6
2.3+4.6=6.9
2.4+4.8=7.2
2.5+5=7.5
2.6+5.2=7.8
2.7+5.4=8.1
2.8+5.6=8.4
2.9+5.8=8.7
0.3+0.6=0.9
3.1+6.2=9.3
3.2+6.4=9.6
3.3+6.6=9.9
1-0.3=0.7
1.5-0.4=1.1
2-0.5=1.5
2.5-0.6=1.9
3.0-0.7=2.3
3.5-0.8=2.7
4-0.9=3.1
4.5-1=3.5
5-1.1=3.9
5.5-1.2=4.3
6-1.3=4.7
6.5-1.4=5.1
7-1.5=5.5
7.5-1.6=5.9
8-1.7=6.3
8.5-1.8=6.7
9-1.9=7.1
9.5-2=7.5
10-2.1=7.9
10.5-2.2=8.3
11-2.3=8.7
11.5-2.4=9.1
12-2.5=9.5
12.5-2.6=9.9
13-2.7=10.3
0.2+0.6+0.0.2=1
2.8 + 1.5 + 0.7=5
3.12- 5.6 + 2.9=0.42
4.8- 5.4 + 1.4 =0.8
5.6- 3.8 – 0.38 = 1.42
6.4 + 5.9 + 3.7 = 16
7.5 - 3.2 + 4.5 = 8.8
8.7 + 1.8 + 1.9 = 12.4
9.9 - 5.6 + 5.6 =9.9
10.3 - 8.9 - 1.3= 0.1
11.7 + 5.49 + 3.14= 20.33
12.6 +1.2 + 2.3 = 16.1
13.8 - 4.5 + 11.5 =20.8
14.3 - 5.6 – 5.6 =3.1
15.9 - 2.7 – 10.21 = 2.99
16.5 - 1.8 – 1.4= 13.3
17.4 + 2.5 + 2.3= 22.2
18.4 + 8.7 – 5.6 =21.5
19.1+3.2 – 3.4 = 18.9
20.3 - 2.9 + 1.3= 18.7
21.5 - 2.5 + 3.7= 22.7
22.3 + 2.3 + 1.6= 26.2
23.1 + 2.3 + 5.6= 31
24.9 + 11 - 1.2= 34.7
25.5 - 11.5 + 4.3= 18.3
26.4 - 2.3 + 1.3 = 25.4
27.7 + 1.19 - 5.6= 23.29
28.1 + 3.4 - 2.3= 29.2
29.8 -2.16 + 1.2= 28.841.2＋9＝10.2
5.43－3.06＝2.37
3＋1.2＝4.2
0.12＋5＝5.12
1.2＋1.8＋1.4＝4.4
6.2＋16＋3.8＝26
14－0.6＝13.4
20.3－8＝12.3
50－1.5＋4＝ 53.5
175－0.56＝174.44
2.08＋11＝13.089
0.4＋20＝ 20.4
2.5＋67＋7.5＝77
4.5－3＝1.5
25－0.38＝1.62
5.4＋9.6＝15
5.6－4＝1.6
1.45＋55＝56.45
4.6＋49＋51＝104.6
9.1－7＝2.1
10.3－0.3＝ 10
28＋9.2＝37.2
43.6＋2.08＝45.68
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
14－7.4＝6.6
0.65＋4.35＝ 5
10－5.4＝4.6
1.5－0.06＝1.44
0.36＋1.54＝2
0.75＋0.25=1
1.37+1+7.63=10
5.6+2.7+4.4=12.7
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
9.14-1.43-4.57=3.14
77+2.7+2.3+25=107
1.88+2.3+3.7=7.88
0.34+0.45=0.79
0.57+0.9=1.47
8-4.6=3.4
0.6-0.37=0.23
4.9+9.8=14.7
39.5+98.8=138.3
1.4+2.8=4.2
1.5+3=4.5
1.6+3.2=4.8
1.7+3.4=5.1
1.8+3.6=5.4
1.9+3.8=5.7
0.2+0.40=0.6
2.1+4.2=6.3
2.2+4.4=6.6
2.3+4.6=6.9
2.4+4.8=7.2
2.5+5=7.5
2.6+5.2=7.8
2.7+5.4=8.1
2.8+5.6=8.4
2.9+5.8=8.7
0.3+0.6=0.9
3.1+6.2=9.3
3.2+6.4=9.6
3.3+6.6=9.9
1-0.3=0.7
1.5-0.4=1.1
2-0.5=1.5
2.5-0.6=1.9
3.0-0.7=2.3
3.5-0.8=2.7
4-0.9=3.1
4.5-1=3.5
5-1.1=3.9
5.5-1.2=4.3
6-1.3=4.7
6.5-1.4=5.1
7-1.5=5.5
7.5-1.6=5.9
8-1.7=6.3
8.5-1.8=6.7
9-1.9=7.1
9.5-2=7.5
10-2.1=7.9
10.5-2.2=8.3
11-2.3=8.7
11.5-2.4=9.1
12-2.5=9.5
12.5-2.6=9.9
13-2.7=10.3
0.2+0.6+0.0.2=1
2.8 + 1.5 + 0.7=5
3.12- 5.6 + 2.9=0.42
4.8- 5.4 + 1.4 =0.8
5.6- 3.8 – 0.38 = 1.42
6.4 + 5.9 + 3.7 = 16
7.5 - 3.2 + 4.5 = 8.8
8.7 + 1.8 + 1.9 = 12.4
9.9 - 5.6 + 5.6 =9.9
10.3 - 8.9 - 1.3= 0.1
11.7 + 5.49 + 3.14= 20.33
12.6 +1.2 + 2.3 = 16.1
13.8 - 4.5 + 11.5 =20.8
14.3 - 5.6 – 5.6 =3.1
15.9 - 2.7 – 10.21 = 2.99
16.5 - 1.8 – 1.4= 13.3
17.4 + 2.5 + 2.3= 22.2
18.4 + 8.7 – 5.6 =21.5
19.1+3.2 – 3.4 = 18.9
20.3 - 2.9 + 1.3= 18.7
21.5 - 2.5 + 3.7= 22.7
22.3 + 2.3 + 1.6= 26.2
23.1 + 2.3 + 5.6= 31
24.9 + 11 - 1.2= 34.7
25.5 - 11.5 + 4.3= 18.3
26.4 - 2.3 + 1.3 = 25.4
27.7 + 1.19 - 5.6= 23.29
28.1 + 3.4 - 2.3= 29.2
29.8 -2.16 + 1.2= 28.84
30.1 + 1.5 – 1.5 =30.1
四年级下册数学简便计算和脱式计算各道两道~
45.6×9.9
=45.6×（10-0.1）
=45.6×10-4.56
=456-4.56
=4551.44
45.6-0.99
=45.6-1+0.01
=44.6+0.01
=44.61
23.5×12.5×0.08
=23.5×（12.5×0.08）
=23.5×1
=23.5
0.623×2.4+6.23×0.76
=6.23×0.24+6.23×0.76
=6.23×（0.24+0.76）
=6.23×1
=6.23
四年级下册口算题——乘法
15×3= 15×30= 150×3= 150×30= 15×300= 3×150=
25×4= 45×20= 50×40= 250×4= 125×4= 125×8=
21×4= 21×40= 210×4= 60×90= 600×8= 60×50=
43×2= 20×34= 3×230= 12×40= 70×20= 3×900=
60×90= 12×7= 12×70= 120×70= 800×90= 40×200=
35×20= 25×20= 500×30= 18×5= 25×4= 350×20=
14×5= 140×50= 28×30= 30×20= 40×40= 140×20=
11×60= 13×30= 130×30= 50×40= 40×200= 50×600=
30×310= 70×8= 410×20= 20×10= 16×100= 200×70=
50×200= 32×30= 13×300= 40×800= 121×4= 60×900=
10×460= 120×3= 20×500= 70×20= 250×4= 120×50=
15×30= 25×30= 250×3= 150×40= 25×300= 30×150=
25×40= 45×200= 70×40= 150×4= 125×8= 125×4=
210×4= 200×40= 310×3= 80×90= 600×7= 600×50=
43×20= 20×35= 3×210= 120×60= 700×20= 30×240=
600×90= 12×8= 120×60= 500×70= 80×100= 90×200=
350×20= 450×20= 500×20= 16×50= 45×4= 350×10=
140×5= 14×30= 26×30= 60×200= 340×20= 180×50=
110×60= 11×300= 230×30= 550×4= 440×20= 50×800=
20×320= 700×8= 450×20= 200×10= 17×100= 500×70=
60×200= 34×30= 19×300= 80×800= 122×4= 70×900=
10×100= 12×300= 50×500= 700×60= 125×8= 160×50=
50×200= 32×30= 13×300= 40×800= 121×4= 60×900=
100×46= 220×3= 60×500= 700×20= 150×4= 220×40=
25×30= 250×30= 250×3= 450×20= 75×20= 30×150=
45×200= 15×600= 700×40= 150×200= 25×8= 25×40=
310×20= 200×50= 110×9= 800×30= 600×7= 600×30=
430×20= 300×25= 3×310= 120×70= 600×70= 80×200=
四年级下册口算题——混合运算
80÷2+100÷5= 45-20×3÷4=
240÷6-2×15= 52-36÷3+20=
320-200÷5×8= 140-20×5+25=
20×30+20×40= 25×(30+10)=
800÷40-400÷40= (840-400)÷4=
600÷(120÷60)= 60÷(10+120÷60)=
(600÷10+10)÷7= (26+14)×70=
260+14×(70-60)= (26+14)×(70-40)=
90÷(30×15÷50)= (35+45)÷(90-10)=
6×10-(21+29)= 25×(22+26×3)=
320-(120+25×4)= 80÷(32+8)×300=
3000-[(32+8)×30]= 30×[169-(60+9)]=
36÷3+6×2= 30÷(3+6×2)=
36÷[(3+6)×2]= 180÷(36÷12)+6=
180÷(36÷12+6)= 180÷[36÷(12+6)]=
450÷15+10×3= 450÷(15+10)×3=
450÷[(15+10)×2]= 240+180÷30×2=
(40+180÷30)×2= (240+180)÷(30×2)=
36+360÷12= 800-800÷80×30=
800-(70×6+180)= 65×(40+20×3)=
四年级下册口算题——运算律
52+44+148= 78+125+75=
79+89+121= 25×62×4=
125×7×8= 70×12×5=
32×25= 5×（12×11）=
560÷16= 70×105=
65×5+35×5= 65×5+45×5=
65×50+35×50= 12×70+38×70=
5×121+79×5= 45×6+35×6=
67×5-37×5= 120×90-110×90=
39×8-6×39= 326×78-326×68=
125×（8+4）= 12×（40-5）=
68×48+68×52= 5×27+63×5=
64×9-14×9= 23×134-34×23=
43+43×99= 99×62+62=
48×101-48= 102×45=
648+203= 63×15×2=
44×25= 36×101=
36×102= 45×99=
256×7-56×7= 49×25×8=
79×32+79×68= 67×101-67=
89×99+89 2.63+5.8+7.37+4.2 52×15-5×52 55×102
2.58-1.6+3.42 125×64 45×25+75×45 23.5-2.8-7.2
58.65-(3.2+8.65) 99×125×8 3200÷25÷4 250÷8×4
80+（146-46×3） 48-（5.2+2.03×10） 32×15+（32.6+8.09）
#左柱坚# 简便脱式题50道,跪求50道,如果回答很好,我要四年级下册不带小数点的,就是用简便算法算脱式题,比如说163x12 - 163x2=163x(12 - 2)=163x10=1630大... - 作业帮
(18488687978)：[答案] 1.3/7 * 49/9 - 4/3 2.8/9 * 15/36 + 1/27 3.12* 5/6 – 2/9 *3 4.8* 5/4 + 1/4 5.6÷ 3/8 – 3/8 ÷6 6.4/7 * 5/9 + 3/7 * 5/9 7.5/2 -( 3/2 + 4/5 ) 8.7/8 + ( 1/8 + 1/9 ) 9.9 * 5/6 + 5/6 10.3/4 *...
#左柱坚# 四年级下册脱式计算 -
(18488687978)： 158+262+138 375+219+381+225 5001-247-1021-232 (181+2564)+2719 378+44+114+242+222 276+228+353+219 (375+1034)+(966+125) (2130+783+270)+1017 99+999+9999+99999 7755-(2187+755) 2214+638+286 3065-738-1065 899+...
#左柱坚# 小学四年级巧算(脱式计算) -
(18488687978)： (1)66x21+19x21+85x19 =(66+19)x21+85x19 =85x21+85x19 =85x(21+19) =85x40 =3400 (2)36x111+888x8 =36x111+111x8x8 =36x111+111x64 =(36+64)x111 =100x111 =11100
#左柱坚# 四年级下学期脱式计算 -
(18488687978)： 脱式计算: 360÷[(12+6)*5] 288÷[(26-14)*8] 500*6-(50*2-80) (105*12-635)÷25 864÷[(27-23)*12] (45+38-16)*24 500-(240+38*6) [64-(87-42)] *15 (845-15*3)÷1612*[(49-28)÷7] 450÷[(84-48] )÷12 希望我的答案对你来说能得到帮助!
#左柱坚# 小学四年级下册数学简便计算题 -
(18488687978)： 38*4*25 125*27*8 48*35*2*35 458+251+749 196-26-74 8400÷25÷4 536-249-136 813+569-213 48+52*3 46*32+46*68 94*99+94 101*482-482 16*29+16*48+16*23 67*53-67*43 15*(9+10+8) (6+8)*25 追问: 还有吗 回答: 56*125 48*25 99*28 101*59 102*43 144÷24 320- 198 136-48-36 417-138-62 246-178+78
#左柱坚# 四年级下册第三单元小数简便脱式计算!急急急!!!(加小数点) -
(18488687978)： 小数加减法: 1.8+3.9= 3.7+8.4= 5.6+1.4= 2.9+4.5= 2.8+4.7= 脱式计算: 4.6+2.7-3.1 = = 31.7+2.3+4.9 = = 28.1-3.9+1.6 = = 36.6-2.4-1.9 = = 3.4+1.6+2.9 = = 简便计算: (9.6+10.4)+1.1 = = 10+9.6+10+0.4 = = 9.4+10.6-10 = = 1.4+1.4+2.2 = = 56.8+43.2-10 = =
#左柱坚# 小学四年级下数学简便运算题7道 -
(18488687978)： 常见以下几类题型:一、运用加法结合律进行简算(a+b)+c=a+(b+c) 或a+b+c+d=(a+c)+(b+d) 例1、5.76+13.67+4.24+6.33=(5.76+4.24)+(13.67+6.33)=10+10=20 例2、37.24+23.79-17.24=37.24-17.24+23.79=20+23.79=43.79 二、运用乘法...
#左柱坚# 四年级下册数学脱式计算题 简算 14.72 - 7.4 - 5.28=怎么做 -
(18488687978)： 四年级下册数学脱式计算题 简算 14.72-(7.4-5.28)=14.72+5.28-7.4=20-7.4=12.6
#左柱坚# 四年级下册口算、竖式、简算、脱式 -
(18488687978)： 12.6-12.9=
#左柱坚# 四年级下册“3175 - (550+117)”这道算式用脱式怎样简便运算? -
(18488687978)： 3175-(550+117)= 3175 - 667= 3175 - 675 + 8= 2500 + 8= 2508
