小学简便运算练习题 急求,小学整数简便运算练习题。急急急
运算定律练习题
(1)乘法交换律:a×b=b×a 乘法结合律:(a×b)×c=a×(b×c) 38×25×4 42×125×8 25×17×4 (25×125)×(8×4)
49×4×5 38×125×8×3 (125×25)×4
5 ×289×2 (125×12)×8 125×(12×4)
(2) 乘法交换律和结合律的变化练习
125×64 125×88 44×25 125×24 25×28
3)加法交换律:a+b=b+a 加法结合律:(a+b)+c=a+(b+c)
357+288+143 158+395+105 167+289+33 129+235+171+165
378+527+73 169+78+22 58+39+42+61 138+293+62+107
(4)乘法分配律:(a+b)×c=a×c+b×c 正用练习
(80+4)×25 (20+4)×25 (125+17)×8 25×(40+4) 15×(20+3)
(5)乘法分配律正用的变化练习: 36×3 25×41 39×101 125×88 201×24
(6)乘法分配律反用的练习:
34×72+34×28 35×37+65×37 85×82+85×18
25×97+25×3 76×25+25×24
(7)乘法分配律反用的变化练习:
38×29+38 75×299+75 64×199+64 35×68+68+68×64
☆思考题:(8)其他的一些简便运算。
800÷25 6000÷125 3600÷8÷5
58×101-58 74×99
【思路导航】在除法里,被除数和除数同时乘或除以一个相同的数,商不变。 325÷25 =(325×4)÷(25×4) =1300÷100 =13 【练一练1】(1)450÷25 (2)525÷25 (3)3500÷125
(4)10000÷625 (5)49500÷900 (6)9000÷225
【经典例题二】计算25×125×4×8
【思路导航】如果先把25与4相乘,可以得到100,同时把125与8相乘,可以得到1000;再把100和1000相乘就可以了。运用了乘法交换律和结合律。 25×125×4×8 =(25×4)×(125×8) =100×1000 =100000 【练一练2】(1)125×15×8×4 (2)25×24 (3)125×16
(4)75×16 (5)125×25×32 (6)25×5×64×125
【经典例题三】计算:(1)125×34+125×66 (2)43×11+43×36+43×52+43 【思路导航】利用乘法分配律来计算这两题 (1)125×34+125×66 (2)43×11+43×36+43×52+43 =125×(34+66) =43×(11+36+52+1)
=125×100 =43×100 =12500 =4300 【练一练3】计算下面各题: (1)125×64+125×36 (2)64×45+64×71-64×16 (3)21×73+26×21+21
【经典例题四】计算(1)(360+108)÷36 (2)1÷2+3÷2+5÷2+7÷2
【思路导航】两个数的和、差除以一个数,可以用这个数分别去除这两个数,再求出两个商的和(差)。利用这一性质,可以使计算简便。 (1)(360+108)÷36 (2)1÷2+3÷2+5÷2+7÷2 =360÷36+108÷36 =(1+3+5+7)÷2 =10+3 =16÷2 =13 =8 【练一练4】(1)(720+96)÷24 (2)(4500-90)÷45 (3)6342÷21
(4)8811÷89 (5)73÷36+105÷36+146÷36 (6)(10000-1000-100-10)÷10
【经典例题五】
158×
61÷
79×
3
【思路导航】在乘除混合运算中,如果算式中没有括号,计算式可以根据运算定律和性质调
换乘数或者除数的位置,只要计算:数字跟着前面的符号一起移动。
【经典例题五】158×61÷79×3
【思路导航】在乘除混合运算中,如果算式中没有括号,计算式可以根据运算定律和性质调换乘数或者除数的位置,只要计算:数字跟着前面的符号一起移动。 158×61÷79×3 =158÷79×61×3 =2×61×3 =366
【练一练5】计算下面各题: (1)238×36÷119×5 (2)138×27÷69×50
(3)624×48÷312÷8 (4)406×312÷104÷203
【经典例题六】计算下面各题: (1)103×96÷16 (2)200÷(25÷4)
【思路导航】这两道题都是乘除法混合运算,我们可以根据这两道题的特点,采用加括号和去括号的方法,使计算简便。可以概括为:括号前是乘号,加、去括号不改号,括号前是除
号,田、去括号要改号。 (1)103×96÷16 (2)200÷(25÷4) =103×(96÷16) =200÷25×4 =103×6 =8×4
=618 =32 【练一练6】计算下面各题: (1)612×366÷183 (2)1000÷(125÷4)
(3)(13×8×5×6)÷(4×5×6) (4)241×345÷678÷345×(678÷241)
【经典例题七】计算:(1)68×62 (2)85×85
【思路导航】这两题的形式叫做“头同尾合十”它们的计算方法是:先用两个因数的个位数相乘,并把积直接写在末尾,如果积不满10,十位上要补写0,然后再将两个因数的十位数乘它本身加1的和,积写在两个个位数积的前面。 (1)68×62 第一步8×2=16,第二步6×(6+1)=42,合起来是4216 (2)85×85 第一步5×5=25,第二步是8×(8+1)=72,合起来是7225 【练一练7】(1)23×27 (2)46×44 (3)55×55 (4)91×99
【经典例题八】计算:26×11
【思路导航】一个两位数乘11的方法是:用两位数的头作积的头,用两位数的尾作积的尾,用这个两位数的两个数字之和作积的中间数(如果相加满十,则把和的十位数“1”加到头上。
26×11
第一步2作积的头,第二步6作积的尾,第三步2+6=8作中间,合起来是286。 【练一练8】计算(1)53×11 (2)39×11 (3)65×11 (4)98×11
【经典例题九】计算:358×11
【思路导航】三位数乘11,用三位数的头作积的头,用三位数的尾作积的尾,用三位数前两位数字组成的数加厚两位数字组成的数的和作积的中间数。 358×11,第一步用3作积的头,第二步用8作积的尾,在用35+58=93,合起来是3938。 【练一练9】计算(1)353×11 (2)654×11 (3)896×11
【练一练1】(1)450÷25 (2)525÷25 (3)3500÷125
4)10000÷625 (5)49500÷900 (6)9000÷225
【练一练2】(1)125×15×8×4 (2)25×24 (3)125×16
(4)75×16 (5)125×25×32 (6)25×5×64×125
【练一练3】计算下面各题: (1)125×64+125×36 (2)64×45+64×71-64×16 (3)21×73+26×21+21
【练一练4】(1)(720+96)÷24 (2)(4500-90)÷45 (3)6342÷21
(4)8811÷89 (5)73÷36+105÷36+146÷36 (6)(10000-1000-100-10)÷10
【练一练5】计算下面各题: (1)238×36÷119×5 (2)138×27÷69×50
(3)624×48÷312÷8 (4)406×312÷104÷203
【练一练6】计算下面各题: (1)612×366÷183 (2)1000÷(125÷4)
(3)(13×8×5×6)÷(4×5×6) (4)241×345÷678÷345×(678÷241)
【练一练7】(1)23×27 (2)46×44 (3)55×55 (4)91×99
【练一练8】计算(1)53×11 (2)39×11 (3)65×11 (4)98×11
【练一练9】计算(1)353×11 (2)654×11 (3)896×11
简便计算专题训练
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
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
1883-398 12×25 75×24
138×25×4 (13×125)×(3×8) (12+24+80)×50
希望可以帮到你O(∩_∩)O哈哈~
练习1
12 –5 = 11 – 4 = 13 – 8 = 13 –6 =
17 – 9 =
12 – 8 = 59 – 25 = 62 – 40 = 40 – 28 = 19 + 26 =
49 + 37 =
46 + 35 = 33 + 58 – 24 = 24 + 61 – 39 = 22 + 39 – 47 = 47 – 18 + 25 = 52 – 48 + 76 = 88 – 41 + 35 = 86 – 29 – 12 =
71 – 28 – 23 =
99 – 73 – 25 =
练习2
14 –5 = 18 – 9 = 14 – 8 = 15 –8 =
16 – 9 =
11 – 8 = 30 – 13 = 29 – 24 = 63 – 25 = 37 + 15 =
14 + 15 =
24 + 17 = 15 + 36 + 14 = 68 + 13 + 14 = 55 + 19 + 27 = 32 + 57 – 23 = 23 + 60 – 38 = 11 + 38 – 46 = 46 – 17 + 24 =
51 – 47 + 75 =
77 – 41 + 34 =
练习3
16 –9 = 15 – 9 = 15 – 7 = 12 –3 =
11 – 4 =
13 – 5 = 38 – 25 = 37 – 22 = 56 – 48 = 19 + 26 =
16 + 77 =
46 + 35 = 85 – 28 – 11 = 70 – 27 – 22 = 88 – 72 – 12 = 14 + 35 + 13 = 67 + 12 + 13 = 44 + 19 + 26 = 34 + 59 – 25 =
25 + 62 – 40 =
23 + 40 – 48 =
练习4
13 –4 = 14 – 6 = 16 – 8 = 22 –5 =
22 – 4 =
23 – 8 = 59 – 35 = 63 – 40 = 40 – 38 = 29 + 36 =
49 + 37 =
46 + 35 = 48 – 19 + 26 = 53 – 49 + 77 = 99 – 41 + 35 = 87 – 30 – 13 = 72 – 29 – 24 = 84 – 13 – 25 = 16 + 37 + 15 =
69 + 14 + 15 =
56 + 20 + 17 =
练习5
23 –6 = 27 – 9 = 22 – 8 = 24 –5 =
28 – 9 =
24 – 8 = 30 – 23 = 39 – 34 = 63 – 35 = 37 + 25 =
24 + 25 =
34 + 27 = 24 + 38 – 25 = 25 + 37 – 40 = 13 + 58 – 48 = 47 – 19 + 26 = 53 – 16 + 77 = 70 – 41 + 35 = 65 – 28 – 13 =
72 – 25 – 24 =
62 – 13 – 25 =
练习6
25 –8 = 26 – 9 = 22 – 8 = 26 –9 =
25 – 9 =
25 – 7 = 38 – 35 = 37 – 33 = 56 – 48 = 29 + 36 =
26 + 77 =
46 + 35 = 24 + 37 + 15 = 69 + 13 + 15 = 56 + 19 + 17 = 33 + 58 – 34 = 34 + 62 – 39 = 33 + 39 – 47 = 47 – 28 + 35 =
53 – 48 + 76 =
88 – 42 + 35 =
练习7 22 –3 = 22 – 4 = 23 – 5 = 23 –4 =
24 – 6 =
26 – 8 = 38 – 23 = 53 – 34 = 33 – 35 = 37 + 25 =
28 + 25 =
29 + 27 = 86 – 39 – 23 = 72 – 38 – 33 = 99 – 53 – 35 = 25 + 36 + 24 = 48 + 23 + 24 = 33 + 29 + 37 = 33 + 57 – 33 =
33 + 60 – 38 =
22 + 38 – 46 =
练习8
23 –5 = 22 – 4 = 23 – 8 = 23 –6 = 27 – 9 = 23 – 8 = 24 –5 = 28 – 9 = 24 – 8 = 25 –8 26 – 9 =
22 – 8 = 46 – 27 + 34 = 52 – 47 + 75 = 77 – 42 + 34 = 85 – 38 – 22 = 70 – 37 – 33 = 88 – 43 – 23 = 24 + 35 + 23 =
47 + 23 + 23 = 24 + 29 + 36 =
练习9
26 –9 = 25 – 9 = 25 – 7 = 23 –3 = 22 – 4 = 23 – 5 = 23 –4 = 24 – 6 = 26 – 8 = 33 –5 = 33 – 4 =
33 – 8 = 34 + 59 – 35 = 35 + 63 – 40 = 33 + 40 – 48 = 48 – 29 + 36 = 53 – 49 + 77 = 99 – 42 + 35 = 87 – 30 – 23 = 73 – 39 – 34 = 84 – 23 – 35 = 65 – 38 – 23 =
73 – 15 – 34 = 63 – 23 – 35 =
练习10
33 –6 = 37 – 9 = 33 – 8 = 34 –5 = 38 – 9 = 34 – 8 = 35 –8 = 36 – 9 = 33 – 8 = 36 –9 = 35 – 9 = 35 – 7 =
小学简便运算练习题~
73*99+73
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+344 2357-183-317-357 2365-1086-214
497-299 2370+1995 3999+498
1883-398 12×25 75×24
138×25×4 (13×125)×(3×8) (12+24+80)×50
简便计算练习题2
704×25 25×32×125 32×(25+125)
88×125 102×76 58×98
178×101-178 84×36+64×84 75×99+2×75
83×102-83×2 98×199 123×18-123×3+85×123
50×(34×4)×3 25×(24+16) 178×99+178
79×42+79+79×57 7300÷25÷4 8100÷4÷75
16800÷120 30100÷2100 32000÷400 21500÷125
49700÷700 1248÷24 3150÷15 4800÷25
简便计算练习题3
2356-(1356-721) 1235-(1780-1665) 75×27+19×2 5
31×870+13×310 4×(25×65+25×28)
(300+6)x12 25x(4+8) 125x(35+8) (13+24)x8
84x101 504x25 78x102 25x204
99x64 99x16 638x99 999x99
99X13+13 25+199X25 32X16+14X32 78X4+78X3+78X3
125X32X8 25X32X125 88X125 72X125
简便计算练习题4
3600÷25÷4 8100÷4÷75 3000÷125÷8 1250÷25÷5
1200-624-76 2100-728-772 273-73-27 847-527-273
278+463+22+37 732+580+268 1034+780320+102 425+14+186
214-(86+14) 787-(87-29) 365-(65+118) 455-(155+230)
576-285+85 825-657+57 690-177+77 755-287+87
871-299 157-99 363-199 968-599
简便计算练习题5
600-60÷15 20X4÷20X4 736-35X20 25X4÷25X4
98-18X5+25 56X8÷56X8 280-80÷ 4 12X6÷12X6
175-75÷25 25X8÷25X8 80-20X2+60 36X9÷36X9
36-36÷6-6 25X8÷(25X8) 100+45-100+45 15X97+3
100+1-100+1 48X99+1 1000+8-1000+8 5+95X28
102+1-102+1 65+35X13 25+75-25+75 40+360÷20-10
13+24X8 672-36+64 324-68+32 100-36+64
简便计算练习题6
26×39+61×26 356×9-56×9 99×55+55
78×101-78 52×76+47×76+76 134×56-134+45×134
48×52×2-4×48 25×23×(40+4) 999×999+1999
184+98 695+202 864-199 738-301
380+476+120 (569+468)+(432+131) 704×25
256-147-53 373-129+29 189-(89+74)
28×4×25 125×32×25 9×72×125
简便计算练习题7
720÷16÷5 630÷42 456-(256-36)
102×35 98×42 158+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+344 2357-183-317-357
2365-1086-214 497-299 2370+1995
3999+498 1883-398 12×25 75×24
138×25×4 (13×125)×(3×8) (12+24+80)×50
25×32×125 32×(25+125) 88×125 102×76
178×101-178 84×36+64×84 75×99+2×75
98×199 123×18-123×3+85×123 50×(34×4)×3
25×(24+16) 178×99+178 79×42+79+79×57
7300÷25÷4 8100÷4÷75 158+262+138
1248÷24 3150÷15 4800÷25 21500÷125
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+344
2357-183-317-357 2365-1086-214 497-299
2370+1995 3999+498 1883-398
12×25 75×24 138×25×4 (13×125)×(3×8)
(12+24+80)×50 704×25 25×32×125 32×(25+125)
88×125 102×76 58×98 178×101-178
84×36+64×84 75×99+2×75 83×102-83×2 98×199
123×18-123×3+85×123 50×(34×4)×3 25×(24+16)
178×99+178 79×42+79+79×57 21500÷125
7300÷25÷4 8100÷4÷75 16800÷120
(a+b)+ c = a +(b+c)
2.73 + 0.89 + 1.27 4.37 + 0.28 + 1.63 + 5.72
a-b-c = a -(b+c)
10 - 0.432 - 2.568 9.3 - 5.26 - 2.74
14.9-(5.2+4.9) 18.32 - 5.47 - 4.32
(a × b)×c = a ×(b × c)
25 × 6.8 × 0.04 0.25 × 32 × 0.125 6.4 × 1.25 × 12.5
c ×(a+b)= c×a + c×b
0.45 × 201 0.58 × 10.1 50.2 × 99 4.7 × 9.9
3.28 × 5.7 + 6.72 × 5.7 2.1 × 99 + 2.1
23 × 0.1 + 2.3 × 9.9 0.18 +4.26 -0.18 +4.26
0.58 ×1.3 ÷ 0.58 ×1.3 7.3 ÷4 + 2.7 × 0.25
3.75 × 0.5 - 2.75 ÷ 2 5.26 × 0.125 + 2.74 ÷ 8
a ÷ b ÷ c = a ÷ (b × c)
6.3 ÷ 1.8 9.5 ÷(1.9 × 8) 12.8 ÷ (0.4 × 1.6)
930 ÷ 0.6 ÷5 63.4 ÷ 2.5 ÷ 0.4 (7.7 + 1.54)÷ 0.7
(26-14)×8 50×(2+80) (10×12)-63 (27-23)×12
(38-16)×24 (24+38)×6 (87-42)×15 (84-15×3)
16×(49-28) 45×(84-48] ) (58+37)×6 (64-9)×5
95×(64-45) (19-14)×9 5×(6+42) (81-70)×6
(9+31)×11 (85+14)×7 (14+20)×26 (28+16)×8
(52-82)×18 (12-36)×41 (58+37)×8 (64-9)×5
(68-68)×55 12×(4+12) 32×(15+25) (6-1)×65
65×(48-12×4) 58×(87-13) 42×(74+6) (6+9)×2.5
(71-56)×92 6×(37-29) 12×(6+8) (12-7)×6
12×(6+7 ) 68×(19+32) (58+37)×2 (64-45)×4
(88-64)×21 (16+64)×65 10×(4-5 ) 38×(50-10)
(18+22)×8 (37+21)×38 (50-24)×9 (18+25)+2
(37+44)×11 (42+22 ) ×8 (28+22) ×35 (37+10) ×96
(21+78) ×10 6-(25+75) (22+68) ×28 (90-73)×10
(23-18)×3 (23-10)×2 (49-29) ×3 (23+95)×5
(3+98)×5 (18-3)×6 12×(25+66) 75×(24+66)
13×(25+4) (13×12)×3 (12+24)×5 (70×25 )×32
32×(25+12) 88×(12+44) 10×(76+9) 58×(98+2)
#欧旭中# 几道小学数学简便计算题 -
(18766259530): 7.51*0.25*0.4 = 7.51*(0.25*0.4) = 7.51*0.1 = 0.751 (9-0.6*3.2)/1.5 = 9/1.5-(0.6/1.5)*3.2 = 6-0.4*3.2 = 6-1.28 = 4.72 3.5/0.25/0.4 = 3.5/(0.25*0.4) = 3.5/0.1 = 35 20.5-(3.64+2.8)/0.4 = 20.5-(9.1+7) = 20.5-16.1 = 4.4 3.06/[1.8*(2.41-1.91)] = 3.06/(1.8*0.5) = 3.06/0.9 = 3.4
#欧旭中# 小学数学题简便运算?
(18766259530): 102x58=(100+2)x58=100x58+2x58=5800+116=5916 99x123=(100-1)x123=100x123-1x123=12300-123=12177 125x88=123x(80+8)=125x80+125x8=10000+1000=11000 36x201=36x(200+1)=36x200+36x1=7200+36=7236
#欧旭中# 小学数学简便计算题 -
(18766259530): 16+(125+85÷5) (1)128+349+172 (2)324-84-116 (3)25*18*4 (4)48*125 (5)6000÷25÷4 (6)68*15+15*32 (7)58*99+58 (8)47*102 (9)46*39-29*46 (10)36+64-36+64 2500÷50*3600÷60
#欧旭中# 几道小学数学计算题(能简便的要简便!)每一步都得写的清清楚楚!会的先写!9999*7778+3333*6666 5.6*69.32﹢138.64*0.05﹢693.2*0.43999*1999 ... - 作业帮
(18766259530):[答案] 1.=3333*3*7778+3333*3*2222 =9999*(7778+2222) =99990000 2.=5.6*69.32+69.32*2*0.05+69.32*4.3 =69.32*(5.6+0.1+4.3) =693.2 3.=(1000-1)*(2000-1) =2000000-3000-1 =1996999 4.=(7/15+2/17)*15*17 =7/15*15*17+2/17*15*17 =7*17+2*15 =149
#欧旭中# 小学五年级200道简便计算 -
(18766259530): 3.29+0.73+2.27 3.29-0.73-2.27 7.5+2.5-7.5+2.57.325-3.29-3.325 7.325-(5.325+1.7) 7.325-(5.325-1.7) 3.29+0.73-2.29+2.27 3.29*0.25*4 0.125*8.8 0.25*0.28 0.125*3.2*2.5 35*40.2 0.25*4÷0.25*4 3.5*9.9 3.5*99+3.5 3.5*101-3.5 3.5*9.9+3.5*0.1...
#欧旭中# 几道小学简便计算题,要脱式计算!一定要简便计算啊,要脱式计算,对了再加5分1.4567 - 3456+1056 - 1672.85*27+85*733.99*99+994.125*315.998+1413+... - 作业帮
(18766259530):[答案] 4567-3456+1056-167=(4567-167)-(3456-1056)=4400-2400=200085*27+85*73=85*(27+73)=85*100=850099*99+99=99*99+99*1=99*(99+1)=99*100=9900125*31=125*(30+1)=125*30+125*1=3750+125=3875998+1413+9989=(987+11)+14...
#欧旭中# 小学数学题简便运算 -
(18766259530): (115+217)*15*17=332*15*17=(332/2)*(15*2)*17=166*30*17=166*510=166*500+166*10=83000+1660=84660
#欧旭中# 一道小学简便计算题 -
(18766259530): =-(4+3/17)*2-(4+3/17)*2/15-14*(8+3/17)-13/15*(8+3/17)+4*4+4*13/15=-4*2-14*8+4*4+3/17*(-2-14)+13/15*(-8+4)-3/17*(2/15+13/15)-4*2/15=-8-112+16-3/17*16-3/17-13/15*4-2/15*4=-104-3-4=-111
#欧旭中# 简便计算小学数学题
(18766259530): =(3600/9+18/9)-0.2=400+2-0.2=401.8
#欧旭中# 小学数学简便计算题 -
(18766259530): (13?ǎ??5 20?????nbsp; 14????nbsp; 276??+276?? 102?? 25?????) (5?ǎ?? 8????5??nbsp; 16?????nbsp; 25????nbsp; 3????nbsp; 23???nbsp; 40????nbsp; 25????nbsp; 3475-1999 2843-598 (8?ǎ??5 4?????5