(完整版)乘法交换律和结合律练习

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(完整版)乘法交换律和结合律练习

(完整版)乘法交换律和结合律练习

一、仔细想,认真填1、两个数相加,交换加数的,和不变,这叫做()。

用字母表示为()。

2、三个数相加,先把()相加,再与()相加;或者先把()相加,再与()相加,它们的和不变,这叫做()。

用字母表示为()。

3、两个数相乘,交换乘数的(),积不变,这叫做()。

用字母表示为()。

4、三个数相乘,先把()相乘,再与()相乘;或者先把()相乘,再与()相乘,它们的积不变,这叫做()。

用字母表示为()。

5、用字母a、b、c表示下面运算定律:(l)加法交换律();(2)加法结合律();(3)乘法交换律();(4)乘法结合律()。

6、73+99+27=99+(73+27)是根据加法()律和()律;9×125×8=9×(125×8),这里运用了乘法()律; (25×37)×4=37×(25×4)。

这里运用了乘法()律和()律。

7、在○里填>、<或=符号。

125×24○125×8×327×4×25○27×(4×25)67×8○68×78、在□内填上数,在○内填上运算符号,在横线上填上运用的运算定律。

29+37+171=37+(□○□)42×5×8=42×(□○□)47+□=28○□427+39+73=(427+□)○□35×2 1×2=21×(□○□)a+(30+8)=(□+□)+8□+28=□+1845×□=32×□(4+8)×25=□×□+□×□这题你会吗?9、计算64×26后,可以交换两个乘数的位置进行验算,是运用了()律。

10、25×(20×39)=(25×20)×39这是运用了()律。

乘法交换律和结合律练习题

乘法交换律和结合律练习题

练习范围:乘法交换律和结合律题数:100月日姓名: 分秒成绩:8 × 125 × 8 = 25 × 73 × 4 = 25 × 84 × 4 =86 × 25 × 4 = 88 × 25 × 4 = 17 × 25 × 4 =25 × 47 × 4 = 38 × 25 × 4 = 25 × 25 × 4 = 125 × 5 × 8 = 42 × 25 × 4 = 8000 ÷ 8 ÷ 125 = 3000 ÷ 25 ÷ 4 = 14 × 25 × 4 = 25 × 91 × 4 = 6700 ÷ 25 ÷ 4 = 96 × 25 × 4 = 25 × 87 × 4 = 125 × 2 × 8 = 125 × 15 × 8 = 16000 ÷ 8 ÷ 125 = 13000 ÷ 25 ÷ 4 = 25 × 6 × 4 = 13000 ÷ 8 ÷ 125 = 5 × 125 × 8 = 25 × 66 × 4 = 2000 ÷ 25 ÷ 4 = 12000 ÷ 125 ÷ 8 = 800 ÷ 25 ÷ 4 = 14 × 125 × 8 =7 × 125 × 8 = 25 × 26 × 4 = 62 × 25 × 4 = 1000 ÷ 8 ÷ 125 = 125 × 8 × 8 = 30 × 25 × 4 =25 × 22 × 4 = 125 × 18 × 8 = 10000 ÷ 8 ÷ 125 = 5600 ÷ 25 ÷ 4 = 52 × 25 × 4 = 76 × 25 × 4 = 10000 ÷ 4 ÷ 25 = 18 × 25 × 4 = 15000 ÷ 8 ÷ 125 =25 × 59 × 4 = 7800 ÷ 25 ÷ 4 = 6000 ÷ 125 ÷ 8 = 18 × 125 × 8 = 15 × 125 × 8 = 7000 ÷ 125 ÷ 8 = 125 × 16 × 8 = 1000 ÷ 125 ÷ 8 = 7000 ÷ 25 ÷ 4 = 20000 ÷ 4 ÷ 25 = 19000 ÷ 8 ÷ 125 = 25 × 40 × 4 =25 × 75 × 4 = 13 × 125 × 8 = 11000 ÷ 8 ÷ 125 = 34 × 25 × 4 = 10000 ÷ 125 ÷ 8 = 20000 ÷ 125 ÷ 8 = 17000 ÷ 125 ÷ 8 = 19 × 125 × 8 = 7000 ÷ 8 ÷ 125 = 25 × 12 × 4 = 10 × 125 × 8 = 12000 ÷ 4 ÷ 25 = 2000 ÷ 125 ÷ 8 = 20000 ÷ 25 ÷ 4 = 3 × 125 × 8 =28 × 25 × 4 = 10000 ÷ 25 ÷ 4 = 3000 ÷ 125 ÷ 8 = 85 × 25 × 4 = 25 × 60 × 4 = 6600 ÷ 25 ÷ 4 = 24 × 25 × 4 = 18000 ÷ 125 ÷ 8 = 26 × 25 × 4 =20 × 125 × 8 = 6 × 125 × 8 = 125 × 6 × 8 =74 × 25 × 4 = 25 × 48 × 4 = 20000 ÷ 8 ÷ 125 = 125 × 10 × 8 = 19000 ÷ 125 ÷ 8 = 25 × 98 × 4 = 125 × 17 × 8 = 5900 ÷ 25 ÷ 4 = 8000 ÷ 4 ÷ 25 = 125 × 13 × 8 = 4 × 125 × 8 = 125 × 3 × 8 =12 × 25 × 4 = 16 × 125 × 8 = 3000 ÷ 4 ÷ 25 = 5500 ÷ 25 ÷ 4 =月 日 姓名:分秒练习范围:乘法交换律和结合律 题数:100成绩:25 × 33 × 4 = 13000 ÷ 125 ÷ 8 = 25 × 79 × 4 = 18 × 25 × 4 = 20000 ÷ 125 ÷ 8 = 34 × 25 × 4 = 94 × 25 × 4 = 13 × 25 × 4 = 20 × 25 × 4 = 14 × 25 × 4 = 8000 ÷ 125 ÷ 8 = 125 × 6 × 8 = 16 × 125 × 8 = 25 × 58 × 4 = 12000 ÷ 4 ÷ 25 = 12 × 125 × 8 = 8000 ÷ 8 ÷ 125 = 125 × 16 × 8 = 11000 ÷ 8 ÷ 125 = 1000 ÷ 8 ÷ 125 = 8200 ÷ 25 ÷ 4 = 5 × 25 × 4 = 10000 ÷ 25 ÷ 4 = 18000 ÷ 125 ÷ 8 = 13 × 125 × 8 = 125 × 2 × 8 = 3 × 25 × 4 = 800 ÷ 25 ÷ 4 = 62 × 25 × 4 = 10000 ÷ 4 ÷ 25 = 5000 ÷ 4 ÷ 25 = 67 × 25 × 4 = 20 × 125 × 8 = 7000 ÷ 25 ÷ 4 = 2900 ÷ 25 ÷ 4 = 6000 ÷ 125 ÷ 8 = 4000 ÷ 125 ÷ 8 = 25 × 49 × 4 = 6300 ÷ 25 ÷ 4 = 24 × 25 × 4 = 125 × 18 × 8 = 2000 ÷ 8 ÷ 125 = 2 × 125 × 8 =96 × 25 × 4 =11000 ÷ 25 ÷ 4 =8 × 125 × 8 = 16000 ÷ 8 ÷ 125 = 17 × 25 × 4 = 13000 ÷ 8 ÷ 125 = 6700 ÷ 25 ÷ 4 = 4 × 125 × 8 = 11000 ÷ 4 ÷ 25 = 4000 ÷ 25 ÷ 4 = 125 × 19 × 8 = 3000 ÷ 125 ÷ 8 = 9600 ÷ 25 ÷ 4 = 3 × 125 × 8 = 3000 ÷ 25 ÷ 4 = 25 × 34 × 4 = 25 × 98 × 4 =52 × 25 × 4 = 25 × 59 × 4 = 4000 ÷ 8 ÷ 125 = 15000 ÷ 4 ÷ 25 = 25 × 43 × 4 = 1700 ÷ 25 ÷ 4 = 1000 ÷ 4 ÷ 25 = 25 × 60 × 4 = 18 × 125 × 8 =56 × 25 × 4 = 7100 ÷ 25 ÷ 4 = 19000 ÷ 125 ÷ 8 = 2000 ÷ 4 ÷ 25 = 6000 ÷ 4 ÷ 25 = 1600 ÷ 25 ÷ 4 = 11 × 25 × 4 = 8400 ÷ 25 ÷ 4 = 25 × 73 × 4 = 7000 ÷ 125 ÷ 8 = 7000 ÷ 4 ÷ 25 = 6 × 25 × 4 = 9100 ÷ 25 ÷ 4 = 19000 ÷ 4 ÷ 25 = 17 × 125 × 8 = 9000 ÷ 125 ÷ 8 = 19 × 125 × 8 = 25 × 5 × 4 =25 × 12 × 4 = 20000 ÷ 4 ÷ 25 = 125 × 5 × 8 = 10000 ÷ 8 ÷ 125 = 54 × 25 × 4 = 25 × 91 × 4 = 14000 ÷ 4 ÷ 25 = 125 × 4 × 8 = 25 × 92 × 4 =25 × 26 × 4 = 4 × 25 × 4 = 16000 ÷ 125 ÷ 8 = 15 × 25 × 4 =月 日 姓名:分秒练习范围:乘法交换律和结合律 题数:100成绩:10 × 125 × 8 = 28 × 25 × 4 = 6500 ÷ 25 ÷ 4 = 10000 ÷ 25 ÷ 4 = 17000 ÷ 4 ÷ 25 = 15 × 125 × 8 = 12000 ÷ 125 ÷ 8 = 125 × 16 × 8 = 125 × 20 × 8 = 14000 ÷ 25 ÷ 4 = 8200 ÷ 25 ÷ 4 = 16 × 125 × 8 = 200 ÷ 25 ÷ 4 = 125 × 14 × 8 = 25 × 48 × 4 = 9 × 125 × 8 = 125 × 6 × 8 = 25 × 36 × 4 = 125 × 5 × 8 = 125 × 18 × 8 = 25 × 79 × 4 = 25 × 60 × 4 = 125 × 4 × 8 = 25 × 32 × 4 = 3000 ÷ 4 ÷ 25 = 25 × 61 × 4 = 125 × 7 × 8 = 74 × 25 × 4 = 125 × 19 × 8 = 8000 ÷ 8 ÷ 125 = 72 × 25 × 4 = 800 ÷ 25 ÷ 4 = 8 × 25 × 4 = 19 × 125 × 8 = 25 × 59 × 4 = 125 × 9 × 8 = 3000 ÷ 25 ÷ 4 = 5 × 125 × 8 = 2 × 125 × 8 = 6 × 125 × 8 = 25 × 92 × 4 = 4 × 125 × 8 = 1900 ÷ 25 ÷ 4 =6000 ÷ 125 ÷ 8 =13000 ÷ 4 ÷ 25 =125 × 10 × 8 = 2000 ÷ 4 ÷ 25 = 17 × 25 × 4 = 15000 ÷ 125 ÷ 8 = 15000 ÷ 4 ÷ 25 = 17 × 125 × 8 = 7000 ÷ 25 ÷ 4 = 10000 ÷ 8 ÷ 125 = 25 × 40 × 4 =20 × 125 × 8 = 8000 ÷ 4 ÷ 25 = 125 × 13 × 8 =18 × 25 × 4 = 18 × 125 × 8 = 4000 ÷ 125 ÷ 8 = 4000 ÷ 25 ÷ 4 = 1000 ÷ 8 ÷ 125 = 7300 ÷ 25 ÷ 4 = 1000 ÷ 125 ÷ 8 = 12000 ÷ 8 ÷ 125 = 19000 ÷ 125 ÷ 8 = 77 × 25 × 4 = 67 × 25 × 4 = 7000 ÷ 8 ÷ 125 = 5000 ÷ 125 ÷ 8 = 25 × 39 × 4 = 6000 ÷ 8 ÷ 125 = 125 × 12 × 8 = 15000 ÷ 8 ÷ 125 = 25 × 58 × 4 = 16000 ÷ 8 ÷ 125 = 20000 ÷ 4 ÷ 25 = 25 × 43 × 4 = 7000 ÷ 125 ÷ 8 = 25 × 89 × 4 = 25 × 99 × 4 =12 × 25 × 4 = 25 × 26 × 4 = 5100 ÷ 25 ÷ 4 = 5900 ÷ 25 ÷ 4 = 25 × 52 × 4 = 19000 ÷ 8 ÷ 125 = 25 × 17 × 4 = 24 × 25 × 4 = 18000 ÷ 125 ÷ 8 = 25 × 16 × 4 = 2400 ÷ 25 ÷ 4 = 16000 ÷ 125 ÷ 8 = 6000 ÷ 4 ÷ 25 = 12 × 125 × 8 = 25 × 73 × 4 =25 × 66 × 4 = 3000 ÷ 125 ÷ 8 = 25 × 34 × 4 =3 × 125 × 8 =月 日 姓名:分秒练习范围:乘法交换律和结合律 题数:100成绩:13000 ÷ 8 ÷ 125 = 25 × 79 × 4 = 25 × 23 × 4 = 125 × 5 × 8 = 8000 ÷ 4 ÷ 25 = 40 × 25 × 4 = 17 × 25 × 4 = 5000 ÷ 125 ÷ 8 = 25 × 48 × 4 = 125 × 16 × 8 = 25 × 43 × 4 = 25 × 59 × 4 = 19000 ÷ 125 ÷ 8 = 6000 ÷ 4 ÷ 25 = 25 × 52 × 4 = 87 × 25 × 4 = 125 × 19 × 8 = 25 × 19 × 4 = 2000 ÷ 25 ÷ 4 = 7000 ÷ 125 ÷ 8 = 17000 ÷ 8 ÷ 125 = 17000 ÷ 25 ÷ 4 = 51 × 25 × 4 = 9000 ÷ 125 ÷ 8 = 5600 ÷ 25 ÷ 4 = 12 × 25 × 4 = 8 × 125 × 8 = 25 × 40 × 4 = 9300 ÷ 25 ÷ 4 = 8200 ÷ 25 ÷ 4 = 10000 ÷ 8 ÷ 125 = 38 × 25 × 4 = 3000 ÷ 25 ÷ 4 = 5 × 25 × 4 = 14 × 125 × 8 = 125 × 9 × 8 = 25 × 26 × 4 = 19000 ÷ 4 ÷ 25 = 12 × 125 × 8 = 16000 ÷ 4 ÷ 25 = 5000 ÷ 25 ÷ 4 = 25 × 73 × 4 = 17000 ÷ 4 ÷ 25 =18000 ÷ 125 ÷ 8 =800 ÷ 25 ÷ 4 =125 × 4 × 8 = 2800 ÷ 25 ÷ 4 = 7000 ÷ 25 ÷ 4 = 19000 ÷ 8 ÷ 125 = 26 × 25 × 4 = 3000 ÷ 125 ÷ 8 = 25 × 27 × 4 = 84 × 25 × 4 = 12000 ÷ 125 ÷ 8 = 25 × 58 × 4 = 4500 ÷ 25 ÷ 4 = 3600 ÷ 25 ÷ 4 = 11000 ÷ 25 ÷ 4 = 20 × 125 × 8 = 77 × 25 × 4 =46 × 25 × 4 = 13000 ÷ 125 ÷ 8 = 18 × 25 × 4 = 10000 ÷ 4 ÷ 25 = 9500 ÷ 25 ÷ 4 = 24 × 25 × 4 = 125 × 12 × 8 = 15000 ÷ 8 ÷ 125 = 15 × 125 × 8 =13 × 125 × 8 = 4000 ÷ 25 ÷ 4 = 74 × 25 × 4 =25 × 34 × 4 = 5900 ÷ 25 ÷ 4 = 125 × 20 × 8 =17 × 125 × 8 = 11000 ÷ 8 ÷ 125 = 8 × 25 × 4 = 15000 ÷ 125 ÷ 8 = 8000 ÷ 125 ÷ 8 = 18 × 125 × 8 =25 × 70 × 4 = 8600 ÷ 25 ÷ 4 = 4 × 125 × 8 = 10000 ÷ 25 ÷ 4 = 6400 ÷ 25 ÷ 4 = 25 × 45 × 4 =96 × 25 × 4 = 72 × 25 × 4 = 9 × 25 × 4 =42 × 25 × 4 = 19000 ÷ 25 ÷ 4 = 16000 ÷ 125 ÷ 8 = 25 × 5 × 4 = 7800 ÷ 25 ÷ 4 = 25 × 91 × 4 = 3000 ÷ 4 ÷ 25 = 125 × 2 × 8 = 71 × 25 × 4 = 7000 ÷ 4 ÷ 25 =月 日 姓名:分秒练习范围:乘法交换律和结合律 题数:100成绩:3000 ÷ 125 ÷ 8 = 25 × 33 × 4 = 14000 ÷ 125 ÷ 8 = 7000 ÷ 4 ÷ 25 = 2000 ÷ 8 ÷ 125 = 6200 ÷ 25 ÷ 4 = 25 × 75 × 4 = 2600 ÷ 25 ÷ 4 = 25 × 44 × 4 = 125 × 18 × 8 = 25 × 48 × 4 = 12 × 25 × 4 = 2000 ÷ 125 ÷ 8 = 8800 ÷ 25 ÷ 4 = 13 × 125 × 8 = 85 × 25 × 4 = 7000 ÷ 125 ÷ 8 = 18000 ÷ 8 ÷ 125 = 87 × 25 × 4 = 62 × 25 × 4 = 19000 ÷ 125 ÷ 8 = 6700 ÷ 25 ÷ 4 = 25 × 58 × 4 = 3900 ÷ 25 ÷ 4 = 96 × 25 × 4 = 19 × 125 × 8 = 8000 ÷ 125 ÷ 8 = 12000 ÷ 125 ÷ 8 = 74 × 25 × 4 = 13000 ÷ 4 ÷ 25 = 19000 ÷ 4 ÷ 25 = 1000 ÷ 8 ÷ 125 = 4 × 125 × 8 = 8 × 25 × 4 = 7500 ÷ 25 ÷ 4 = 7000 ÷ 8 ÷ 125 = 25 × 92 × 4 = 42 × 25 × 4 = 12 × 125 × 8 = 12000 ÷ 8 ÷ 125 = 6 × 125 × 8 = 125 × 8 × 8 = 125 × 20 × 8 =7 × 125 × 8 =25 × 32 × 4 =5000 ÷ 25 ÷ 4 = 58 × 25 × 4 = 4000 ÷ 125 ÷ 8 = 10 × 125 × 8 = 11000 ÷ 125 ÷ 8 = 25 × 12 × 4 = 6000 ÷ 125 ÷ 8 = 11000 ÷ 8 ÷ 125 = 25 × 13 × 4 = 7000 ÷ 25 ÷ 4 = 25 × 49 × 4 = 125 × 11 × 8 =14 × 25 × 4 = 17000 ÷ 125 ÷ 8 = 25 × 35 × 4 = 8200 ÷ 25 ÷ 4 = 17000 ÷ 8 ÷ 125 = 20 × 125 × 8 =11 × 125 × 8 = 6000 ÷ 4 ÷ 25 = 25 × 2 × 4 =125 × 7 × 8 = 125 × 4 × 8 = 10000 ÷ 8 ÷ 125 = 125 × 9 × 8 = 16 × 125 × 8 = 32 × 25 × 4 = 5000 ÷ 125 ÷ 8 = 25 × 28 × 4 = 8000 ÷ 8 ÷ 125 = 54 × 25 × 4 = 6100 ÷ 25 ÷ 4 = 125 × 12 × 8 =77 × 25 × 4 = 29 × 25 × 4 = 25 × 66 × 4 =66 × 25 × 4 = 25 × 76 × 4 = 25 × 5 × 4 =15 × 125 × 8 = 78 × 25 × 4 = 10000 ÷ 25 ÷ 4 = 1000 ÷ 4 ÷ 25 = 52 × 25 × 4 = 25 × 60 × 4 =17 × 25 × 4 = 14000 ÷ 8 ÷ 125 = 18000 ÷ 125 ÷ 8 = 6400 ÷ 25 ÷ 4 = 11000 ÷ 4 ÷ 25 = 8000 ÷ 4 ÷ 25 = 1000 ÷ 125 ÷ 8 = 2000 ÷ 4 ÷ 25 = 3000 ÷ 4 ÷ 25 = 125 × 5 × 8 =月 日 姓名:分秒练习范围:乘法交换律和结合律 题数:100成绩:1000 ÷ 125 ÷ 8 = 18000 ÷ 125 ÷ 8 = 24 × 25 × 4 = 6 × 125 × 8 = 125 × 13 × 8 = 3 × 25 × 4 = 6000 ÷ 8 ÷ 125 = 18000 ÷ 8 ÷ 125 = 25 × 59 × 4 = 80 × 25 × 4 = 18 × 25 × 4 = 4 × 125 × 8 = 12000 ÷ 125 ÷ 8 = 17 × 125 × 8 = 1000 ÷ 4 ÷ 25 = 67 × 25 × 4 = 64 × 25 × 4 = 25 × 34 × 4 = 46 × 25 × 4 = 5600 ÷ 25 ÷ 4 = 5 × 25 × 4 = 25 × 4 × 4 = 16000 ÷ 125 ÷ 8 = 125 × 9 × 8 = 25 × 73 × 4 = 11000 ÷ 4 ÷ 25 = 65 × 25 × 4 = 25 × 49 × 4 = 125 × 6 × 8 = 16000 ÷ 8 ÷ 125 = 7000 ÷ 4 ÷ 25 = 19 × 125 × 8 = 25 × 12 × 4 = 5000 ÷ 125 ÷ 8 = 8000 ÷ 125 ÷ 8 = 17000 ÷ 8 ÷ 125 = 3000 ÷ 125 ÷ 8 = 12 × 25 × 4 = 125 × 4 × 8 = 88 × 25 × 4 = 92 × 25 × 4 = 10000 ÷ 25 ÷ 4 = 87 × 25 × 4 =2600 ÷ 25 ÷ 4 =125 × 2 × 8 =25 × 66 × 4 = 34 × 25 × 4 = 23 × 25 × 4 =85 × 25 × 4 = 1000 ÷ 8 ÷ 125 = 28 × 25 × 4 = 5000 ÷ 8 ÷ 125 = 25 × 43 × 4 = 125 × 7 × 8 = 20000 ÷ 25 ÷ 4 = 13000 ÷ 8 ÷ 125 = 8000 ÷ 4 ÷ 25 = 16 × 125 × 8 = 3 × 125 × 8 = 1000 ÷ 25 ÷ 4 = 19000 ÷ 125 ÷ 8 = 54 × 25 × 4 = 125 × 15 × 8 = 25 × 40 × 4 = 18000 ÷ 4 ÷ 25 = 2500 ÷ 25 ÷ 4 = 9 × 125 × 8 = 7000 ÷ 8 ÷ 125 = 12 × 125 × 8 = 91 × 25 × 4 = 16000 ÷ 4 ÷ 25 = 125 × 19 × 8 = 12000 ÷ 4 ÷ 25 = 3900 ÷ 25 ÷ 4 = 3000 ÷ 25 ÷ 4 = 6400 ÷ 25 ÷ 4 = 62 × 25 × 4 = 8 × 125 × 8 =25 × 92 × 4 = 20000 ÷ 4 ÷ 25 = 25 × 79 × 4 =25 × 38 × 4 = 3000 ÷ 4 ÷ 25 = 7000 ÷ 25 ÷ 4 = 7000 ÷ 125 ÷ 8 = 25 × 91 × 4 = 4300 ÷ 25 ÷ 4 = 10000 ÷ 4 ÷ 25 = 99 × 25 × 4 = 9000 ÷ 125 ÷ 8 = 17 × 25 × 4 = 19000 ÷ 4 ÷ 25 = 25 × 27 × 4 = 6700 ÷ 25 ÷ 4 = 14000 ÷ 125 ÷ 8 = 125 × 11 × 8 = 25 × 48 × 4 = 25 × 58 × 4 = 14000 ÷ 4 ÷ 25 = 70 × 25 × 4 =月 日 姓名:分秒练习范围:乘法交换律和结合律 题数:100成绩:125 × 18 × 8 = 24 × 25 × 4 = 25 × 72 × 4 = 18000 ÷ 125 ÷ 8 = 125 × 2 × 8 = 9 × 125 × 8 = 27 × 25 × 4 = 5000 ÷ 125 ÷ 8 = 5400 ÷ 25 ÷ 4 = 6000 ÷ 125 ÷ 8 = 25 × 59 × 4 = 54 × 25 × 4 = 125 × 16 × 8 = 3400 ÷ 25 ÷ 4 = 16 × 125 × 8 = 25 × 79 × 4 = 125 × 19 × 8 = 42 × 25 × 4 = 125 × 8 × 8 = 8 × 25 × 4 = 25 × 40 × 4 = 6000 ÷ 4 ÷ 25 = 3000 ÷ 4 ÷ 25 = 3 × 25 × 4 = 13000 ÷ 8 ÷ 125 = 25 × 36 × 4 = 16000 ÷ 8 ÷ 125 = 12 × 125 × 8 = 4000 ÷ 125 ÷ 8 = 17000 ÷ 125 ÷ 8 = 12000 ÷ 4 ÷ 25 = 5 × 25 × 4 = 6400 ÷ 25 ÷ 4 = 3 × 125 × 8 = 73 × 25 × 4 = 800 ÷ 25 ÷ 4 = 41 × 25 × 4 = 5 × 125 × 8 = 48 × 25 × 4 = 3000 ÷ 125 ÷ 8 = 9000 ÷ 125 ÷ 8 = 25 × 43 × 4 = 15000 ÷ 8 ÷ 125 =68 × 25 × 4 =13 × 125 × 8 =10000 ÷ 125 ÷ 8 = 6000 ÷ 8 ÷ 125 = 47 × 25 × 4 =25 × 71 × 4 = 1000 ÷ 25 ÷ 4 = 25 × 48 × 4 =34 × 25 × 4 = 9500 ÷ 25 ÷ 4 = 19 × 125 × 8 =17 × 25 × 4 = 10000 ÷ 25 ÷ 4 = 8000 ÷ 4 ÷ 25 = 125 × 15 × 8 = 10000 ÷ 4 ÷ 25 = 67 × 25 × 4 = 125 × 5 × 8 = 25 × 74 × 4 = 125 × 10 × 8 = 15000 ÷ 125 ÷ 8 = 125 × 13 × 8 = 11 × 125 × 8 =25 × 34 × 4 = 16 × 25 × 4 = 25 × 60 × 4 = 125 × 7 × 8 = 19000 ÷ 125 ÷ 8 = 8300 ÷ 25 ÷ 4 = 8200 ÷ 25 ÷ 4 = 8 × 125 × 8 = 12 × 25 × 4 = 3000 ÷ 25 ÷ 4 = 17000 ÷ 8 ÷ 125 = 14000 ÷ 8 ÷ 125 = 125 × 17 × 8 = 6700 ÷ 25 ÷ 4 = 84 × 25 × 4 =25 × 80 × 4 = 10000 ÷ 8 ÷ 125 = 12000 ÷ 8 ÷ 125 = 25 × 75 × 4 = 62 × 25 × 4 = 9000 ÷ 8 ÷ 125 = 87 × 25 × 4 = 125 × 6 × 8 = 77 × 25 × 4 =25 × 26 × 4 = 25 × 13 × 4 = 6 × 125 × 8 =25 × 92 × 4 = 46 × 25 × 4 = 7900 ÷ 25 ÷ 4 = 85 × 25 × 4 = 125 × 9 × 8 = 1000 ÷ 8 ÷ 125 = 25 × 98 × 4 =月 日 姓名:分秒练习范围:乘法交换律和结合律 题数:100成绩:5 × 125 × 8 = 7000 ÷ 25 ÷ 4 = 9000 ÷ 25 ÷ 4 = 9000 ÷ 125 ÷ 8 = 2000 ÷ 8 ÷ 125 = 74 × 25 × 4 = 6400 ÷ 25 ÷ 4 = 20000 ÷ 125 ÷ 8 = 25 × 66 × 4 = 13 × 125 × 8 = 51 × 25 × 4 = 19000 ÷ 4 ÷ 25 = 12 × 125 × 8 = 25 × 74 × 4 = 6000 ÷ 4 ÷ 25 = 5000 ÷ 8 ÷ 125 = 5600 ÷ 25 ÷ 4 = 62 × 25 × 4 = 25 × 26 × 4 = 125 × 3 × 8 = 25 × 60 × 4 = 25 × 73 × 4 = 46 × 25 × 4 = 25 × 40 × 4 = 25 × 37 × 4 = 5000 ÷ 125 ÷8 = 25 × 35 × 4 = 4000 ÷ 8 ÷ 125 = 6000 ÷ 125 ÷ 8 = 17 × 125 × 8 = 16000 ÷ 125 ÷ 8 = 10000 ÷ 8 ÷ 125 = 34 × 25 × 4 = 5800 ÷ 25 ÷ 4 = 15 × 125 × 8 = 25 × 34 × 4 = 24 × 25 × 4 = 6700 ÷ 25 ÷ 4 = 125 × 16 × 8 = 8 × 25 × 4 = 15000 ÷ 125 ÷ 8 = 25 × 98 × 4 = 77 × 25 × 4 =20 × 125 × 8 =4000 ÷ 125 ÷ 8 =18 × 125 × 8 = 3000 ÷ 4 ÷ 25 = 25 × 43 × 4 =25 × 91 × 4 = 3000 ÷ 125 ÷ 8 = 90 × 25 × 4 = 16000 ÷ 4 ÷ 25 = 7000 ÷ 8 ÷ 125 = 15000 ÷ 8 ÷ 125 = 18000 ÷ 125 ÷ 8 = 2000 ÷ 4 ÷ 25 = 4 × 125 × 8 =87 × 25 × 4 = 12000 ÷ 8 ÷ 125 = 800 ÷ 25 ÷ 4 = 10000 ÷ 125 ÷ 8 = 25 × 88 × 4 = 19 × 125 × 8 =16 × 25 × 4 = 125 × 2 × 8 = 125 × 14 × 8 = 6100 ÷ 25 ÷ 4 = 96 × 25 × 4 = 7000 ÷ 125 ÷ 8 = 25 × 75 × 4 = 300 ÷ 25 ÷ 4 = 11000 ÷ 4 ÷ 25 = 7800 ÷ 25 ÷ 4 = 125 × 5 × 8 = 55 × 25 × 4 =25 × 92 × 4 = 25 × 6 × 4 = 7 × 125 × 8 =18 × 25 × 4 = 25 × 48 × 4 = 125 × 7 × 8 =11 × 125 × 8 = 1000 ÷ 4 ÷ 25 = 125 × 17 × 8 =85 × 25 × 4 = 1000 ÷ 8 ÷ 125 = 3300 ÷ 25 ÷ 4 = 25 × 12 × 4 = 16000 ÷ 8 ÷ 125 = 25 × 50 × 4 = 125 × 6 × 8 = 125 × 10 × 8 = 6000 ÷ 25 ÷ 4 = 38 × 25 × 4 = 12000 ÷ 4 ÷ 25 = 2000 ÷ 125 ÷ 8 = 6 × 125 × 8 = 25 × 2 × 4 = 2300 ÷ 25 ÷ 4 = 19000 ÷ 8 ÷ 125 =月 日 姓名:分秒练习范围:乘法交换律和结合律 题数:100成绩:6000 ÷ 125 ÷ 8 = 10 × 125 × 8 = 1000 ÷ 4 ÷ 25 = 96 × 25 × 4 = 18 × 125 × 8 = 27 × 25 × 4 = 16000 ÷ 8 ÷ 125 = 1100 ÷ 25 ÷ 4 = 7000 ÷ 125 ÷ 8 = 9000 ÷ 125 ÷ 8 = 25 × 46 × 4 = 25 × 40 × 4 = 6000 ÷ 4 ÷ 25 = 5600 ÷ 25 ÷ 4 = 20000 ÷ 25 ÷ 4 = 125 × 11 × 8 = 25 × 53 × 4 = 52 × 25 × 4 = 83 × 25 × 4 = 25 × 48 × 4 = 125 × 15 × 8 = 13 × 125 × 8 = 100 ÷ 25 ÷ 4 = 98 × 25 × 4 = 7000 ÷ 25 ÷ 4 = 18000 ÷ 125 ÷ 8 = 25 × 24 × 4 = 15000 ÷ 8 ÷ 125 = 24 × 25 × 4 = 1000 ÷ 125 ÷ 8 = 25 × 59 × 4 = 25 × 55 × 4 = 15 × 125 × 8 = 6400 ÷ 25 ÷ 4 = 8 × 25 × 4 = 54 × 25 × 4 = 25 × 67 × 4 = 16000 ÷ 4 ÷ 25 = 25 × 91 × 4 = 10000 ÷ 25 ÷ 4 = 25 × 34 × 4 = 2000 ÷ 125 ÷ 8 = 125 × 9 × 8 =1000 ÷ 8 ÷ 125 =125 × 10 × 8 =3000 ÷ 4 ÷ 25 = 34 × 25 × 4 = 3400 ÷ 25 ÷ 4 = 25 × 61 × 4 = 125 × 12 × 8 = 25 × 66 × 4 = 19000 ÷ 125 ÷ 8 = 3000 ÷ 125 ÷ 8 = 4000 ÷ 8 ÷ 125 = 9200 ÷ 25 ÷ 4 = 25 × 79 × 4 = 7000 ÷ 8 ÷ 125 = 5000 ÷ 8 ÷ 125 = 62 × 25 × 4 = 16 × 125 × 8 = 14 × 25 × 4 = 25 × 56 × 4 = 5000 ÷ 4 ÷ 25 = 19000 ÷ 4 ÷ 25 = 25 × 73 × 4 = 7800 ÷ 25 ÷ 4 = 25 × 20 × 4 = 25 × 76 × 4 = 6 × 125 × 8 = 7000 ÷ 4 ÷ 25 = 85 × 25 × 4 = 125 × 16 × 8 = 8 × 125 × 8 = 9000 ÷ 4 ÷ 25 = 25 × 75 × 4 =17 × 25 × 4 = 125 × 19 × 8 = 5 × 125 × 8 =18 × 25 × 4 = 11000 ÷ 125 ÷ 8 = 25 × 58 × 4 = 125 × 4 × 8 = 25 × 95 × 4 = 25 × 81 × 4 = 10000 ÷ 4 ÷ 25 = 12000 ÷ 4 ÷ 25 = 25 × 60 × 4 =17 × 125 × 8 = 11000 ÷ 4 ÷ 25 = 87 × 25 × 4 = 18000 ÷ 4 ÷ 25 = 3000 ÷ 25 ÷ 4 = 125 × 5 × 8 =25 × 52 × 4 = 8200 ÷ 25 ÷ 4 = 5 × 25 × 4 = 8000 ÷ 125 ÷ 8 = 42 × 25 × 4 = 600 ÷ 25 ÷ 4 = 14000 ÷ 4 ÷ 25 =月 日 姓名:分秒练习范围:乘法交换律和结合律 题数:100成绩:19 × 125 × 8 = 19000 ÷ 125 ÷ 8 = 54 × 25 × 4 = 125 × 16 × 8 = 3000 ÷ 125 ÷ 8 = 25 × 82 × 4 = 125 × 10 × 8 = 66 × 25 × 4 = 34 × 25 × 4 = 3700 ÷ 25 ÷ 4 = 25 × 56 × 4 = 15 × 125 × 8 = 14 × 25 × 4 = 6000 ÷ 8 ÷ 125 = 125 × 19 × 8 = 25 × 40 × 4 = 13 × 125 × 8 = 3900 ÷ 25 ÷ 4 = 14000 ÷ 8 ÷ 125 = 8700 ÷ 25 ÷ 4 = 9000 ÷ 25 ÷ 4 = 16000 ÷ 8 ÷ 125 = 24 × 25 × 4 = 2000 ÷ 4 ÷ 25 = 1000 ÷ 125 ÷ 8 = 25 × 92 × 4 = 18000 ÷ 125 ÷ 8 = 6600 ÷ 25 ÷ 4 = 18000 ÷ 4 ÷ 25 = 7800 ÷ 25 ÷ 4 = 14000 ÷ 4 ÷ 25 = 87 × 25 × 4 = 5 × 25 × 4 = 15000 ÷ 8 ÷ 125 = 25 × 43 × 4 = 7700 ÷ 25 ÷ 4 = 800 ÷ 25 ÷ 4 = 5000 ÷ 125 ÷ 8 = 46 × 25 × 4 = 125 × 5 × 8 = 7000 ÷ 25 ÷ 4 = 13000 ÷ 8 ÷ 125 = 25 × 98 × 4 =67 × 25 × 4 =125 × 15 × 8 =6700 ÷ 25 ÷ 4 = 125 × 4 × 8 = 39 × 25 × 4 =16 × 125 × 8 = 125 × 3 × 8 = 6000 ÷ 125 ÷ 8 = 1000 ÷ 4 ÷ 25 = 125 × 12 × 8 = 12 × 125 × 8 = 19000 ÷ 8 ÷ 125 = 19000 ÷ 4 ÷ 25 = 7000 ÷ 8 ÷ 125 = 25 × 66 × 4 = 19 × 25 × 4 = 12000 ÷ 125 ÷ 8 = 25 × 78 × 4 = 8400 ÷ 25 ÷ 4 = 5000 ÷ 8 ÷ 125 = 25 × 58 × 4 = 4400 ÷ 25 ÷ 4 = 17000 ÷ 4 ÷ 25 = 13000 ÷ 4 ÷ 25 = 25 × 73 × 4 = 7 × 125 × 8 = 9000 ÷ 125 ÷ 8 = 4100 ÷ 25 ÷ 4 = 10000 ÷ 25 ÷ 4 = 63 × 25 × 4 = 96 × 25 × 4 = 125 × 11 × 8 =18 × 25 × 4 = 125 × 8 × 8 = 25 × 34 × 4 = 13000 ÷ 125 ÷ 8 = 8000 ÷ 125 ÷ 8 = 83 × 25 × 4 =29 × 25 × 4 = 4300 ÷ 25 ÷ 4 = 6000 ÷ 4 ÷ 25 = 8 × 125 × 8 = 25 × 75 × 4 = 25 × 59 × 4 =17 × 25 × 4 = 20000 ÷ 8 ÷ 125 = 6400 ÷ 25 ÷ 4 = 74 × 25 × 4 = 25 × 49 × 4 = 25 × 48 × 4 =3 × 125 × 8 = 25 × 93 ×4 = 7000 ÷ 4 ÷ 25 = 125 × 13 × 8 = 5 × 125 × 8 = 200 ÷ 25 ÷ 4 = 125 × 2 × 8 =。

乘法交换律和结合律练习题

乘法交换律和结合律练习题

乘法交换律和结合律练习题一、仔细想,认真填1、两个数相加,交换加数的,和不变,这叫做。

用字母表示为。

2、三个数相加,先把相加,再与相加;或者先把相加,再与相加,它们的和不变,这叫做。

用字母表示为。

3、两个数相乘,交换乘数的,积不变,这叫做。

用字母表示为。

4、三个数相乘,先把相乘,再与相乘;或者先把相乘,再与相乘,它们的积不变,这叫做。

用字母表示为。

5、73+99+27=99+(73+27) 是根据加法( )律和( )律;9×125×8 =9×(125×8),这里运用了乘法( )律;(25×37)×4=37×(25×4)。

这里运用了乘法( )律和( )律。

6、在○里填>、<或=符号。

125×24○125×8×3 27×4×25○27×(4×25) 67×8○68×77、在□内填上数,在○内填上运算符号,在横线上填上运用的运算定律。

29+37+171=37+(□○□)。

42×5×8=42×(□○□)。

47+□=28○□。

427+39+73=(427+□)○□。

35×21×2=21×(□○□)。

8、计算64×26后,可以交换两个乘数的位置进行验算,是运用了()律。

9、25×(20×39)=(25×20)×39 这是运用了()律。

10、用简便方法计算76+98+24,要先算(),这是根据()律。

二、对号入座:(把正确的答案的序号填在括号里)1、下面一个零也不读的数是( )。

A.600030 B.603000 C.6003002、与480×40的积一样的算式是( )。

A.48×40 B.480×400 C.48×4003、用两个4和三个0可以组成( )个不同的五位数。

小学四年级数学下册练习题乘法交换律和结合律(共400题)

小学四年级数学下册练习题乘法交换律和结合律(共400题)

月 日 姓名: 分 秒 班级:
58 25 4
19000 25 4
4800 25 4
2300 25 4
4600 25 4
1100 25 4
9000 8 125
700 25 4
25 79 4
4300 25 4
25 16 4
4100 25 4
25 33 4
11000 4 25
25 91 4
15000 8 125
4000 25 4
125 8 8
1700 25 4
39 25 4
700 25 4
25 19 4
900 25 4
10000 125 8
11000 125 8
93 25 4
25 53 4
4
小学四年级数学下册练习题 《乘法交换律和结合律》 题数:400题
25 76 4
2100 25 4
月 日 姓名: 分 秒 班级:
400 25 4
125 9 8
1400 25 4
2000 125 8
25 69 4
25 59 4
16000 25 4
125 19 8
73 25 4
25 2 4
25 17 4
25 96 4
24 25 4
45 25 4
25 6 4
4 125 8
68 25 4
25 78 4
8
小学四年级数学下册练习题 《乘法交换律和结合律》 题数:400题
84 25 4
125 14 8
月 日 姓名: 分 秒 班级:
25 55 4
10000 25 4
25 35 4
500 25 4
6000 25 4

四年级练习题乘法交换律与结合律

四年级练习题乘法交换律与结合律

四年级上册第三单元——乘法交换律与结合律一、仔细想,认真填1、两个数相加,交换加数的,和不变,这叫做。

用字母表示为。

2、三个数相加,先把相加,再与相加;或者先把相加,再与相加,它们的和不变,这叫做。

用字母表示为。

3、两个数相乘,交换乘数的,积不变,这叫做。

用字母表示为。

4、三个数相乘,先把相乘,再与相乘;或者先把相乘,再与相乘,它们的积不变,这叫做。

用字母表示为。

5、用字母a、b、c表示下面运算定律:(l)加法交换律();(2)加法结合律();(3)乘法交换律();(4)乘法结合律()。

6、73+99+27=99+(73+27) 是根据加法( )律和( )律;9×125×8 =9×(125×8),这里运用了乘法( )律;(25×37)×4=37×(25×4)。

这里运用了乘法( )律和( )律。

4、在○里填>、<或=符号。

125×24○125×8×3 27×4×25○27×(4×25) 67×8○68×75、在□内填上数,在○内填上运算符号,在横线上填上运用的运算定律。

29+37+171=37+(□○□)。

42×5×8=42×(□○□)。

47+□=28○□。

427+39+73=(427+□)○□。

35×21×2=21×(□○□) 。

6、计算64×26后,可以交换两个乘数的位置进行验算,是运用了()律。

7、25×(20×39)=(25×20)×39 这是运用了()律。

8、用简便方法计算76+98+24,要先算(),这是根据()律。

二、对号入座:(把正确的答案的序号填在括号里)1、下面一个零也不读的数是( )。

A.600030B.603000C.6003002、与480×40的积一样的算式是( )。

(完整版)乘法运算定律专项练习题

(完整版)乘法运算定律专项练习题

四年级乘法运算定律专项练习姓名:一、乘法交换律、乘法结合律1、乘法交换律:交换两个因数的地址,积不变。

用字母表示为: a × b = b × a2 、多个数相乘,任意交换因数的地址,积不变。

如 a × b × c × d = b × d × a × c3、乘法结合律:三个数相乘,先乘前两个数,也许先乘后两个数,积不变。

永宁字母表示为:( a × b )× c = a ×( b × c )4、在乘法算式中,若是其中两个因数的积为整十、整百、整千数时,可以运用乘法交换律、乘法结合律来改变运算序次,从而简化运算。

二、乘法交换律、乘法结合律的结合运用1、运用乘法交换律、乘法结合律简化运算的本质与算式特点本质:把其中相乘结果为整十、整百、整千的两个因数先相乘。

平时利用的算式是:2 × 5 = 10 ; 4 × 25 = 100 ; 8 × 125 = 1000 ; 25 × 8 = 200 ; 75× 4 = 300 ; 75 × 4 = 300这类题型特点是几个数连续相乘2、简略计算。

8 ×( 30 × 125 ) 5 ×( 63 × 2 )25 ×( 26 × 4 )( 25 × 125 )× 8 × 478 × 125 × 8 × 3 25 × 125 × 8 × 4 125 × 19 × 8 × 3(125× 12)× 8(25× 3)× 43、在乘法算式中,当因数中有25 、 125 等因数,而别的的因数没有 4 或 8 时,可以考虑将别的一个数拆分为 4 或 8 的形式,从而利用乘法交换律、乘法结合律使运算简化。

乘法交换律和结合律练习题

乘法交换律和结合律练习题

乘法交换律和结合律练习题乘法交换律和结合律练习题在数学中,乘法交换律和结合律是基本的运算法则。

它们在解决实际问题和简化计算中起着重要的作用。

为了更好地理解和应用这两个法则,我们可以通过一些练习题来加深对它们的理解。

1. 练习题一:乘法交换律(a) 计算:3 × 4 × 5 = ?(b) 将乘法顺序改变后重新计算:4 × 5 × 3 = ?(c) 结果是否相同?为什么?解答:(a) 3 × 4 × 5 = 60(b) 4 × 5 × 3 = 60(c) 结果相同。

根据乘法交换律,乘法的顺序改变不会改变最终的结果。

2. 练习题二:结合律(a) 计算:(2 × 3) × 4 = ?(b) 将括号内的乘法顺序改变后重新计算:2 × (3 × 4) = ?(c) 结果是否相同?为什么?解答:(a) (2 × 3) × 4 = 24(b) 2 × (3 × 4) = 24(c) 结果相同。

根据结合律,无论括号内的乘法顺序如何改变,最终的结果都不会改变。

3. 练习题三:乘法交换律和结合律的综合运用(a) 计算:(5 × 2) × (3 × 4) = ?(b) 将乘法顺序和括号内的乘法顺序改变后重新计算:(4 × 3) × (2 × 5) = ?(c) 结果是否相同?为什么?解答:(a) (5 × 2) × (3 × 4) = 10 × 12 = 120(b) (4 × 3) × (2 × 5) = 12 × 10 = 120(c) 结果相同。

根据乘法交换律和结合律,乘法的顺序和括号内的乘法顺序的改变都不会改变最终的结果。

口算题 (乘法交换律和结合律) 1000题

口算题 (乘法交换律和结合律) 1000题

8 × 125 × 8 = 25 × 73 × 4 = 25 × 84 × 4 = 86 × 25 × 4 = 88 × 25 × 4 = 17 × 25 × 4 = 25 × 47 × 4 = 38 × 25 × 4 = 25 × 25 × 4 = 125 × 5 × 8 = 42 × 25 × 4 = 8000 ÷ 8 ÷ 125 = 3000 ÷ 25 ÷ 4 = 14 × 25 × 4 = 25 × 91 × 4 = 6700 ÷ 25 ÷ 4 = 96 × 25 × 4 = 25 × 87 × 4 = 125 × 2 × 8 = 125 × 15 × 8 = 16000 ÷ 8 ÷ 125 = 13000 ÷ 25 ÷ 4 = 25 × 6 × 4 = 13000 ÷ 8 ÷ 125 = 5 × 125 × 8 = 25 × 66 × 4 = 2000 ÷ 25 ÷ 4 = 12000 ÷ 125 ÷ 8 = 800 ÷ 25 ÷ 4 = 14 × 125 × 8 = 7 × 125 × 8 = 25 × 26 × 4 = 62 × 25 × 4 = 1000 ÷ 8 ÷ 125 = 125 × 8 × 8 = 30 × 25 × 4 = 25 × 22 × 4 = 125 × 18 × 8 = 10000 ÷ 8 ÷ 125 = 5600 ÷ 25 ÷ 4 = 52 × 25 × 4 = 76 × 25 × 4 = 10000 ÷ 4 ÷ 25 =18 × 25 × 4 =15000 ÷ 8 ÷ 125 =练习范围: 月 日 姓名: 乘法交换律和结合律题数: 100 分 秒 成绩:25 × 59 × 4 =7800 ÷ 25 ÷ 4 =6000 ÷ 125 ÷ 8 = 18 × 125 × 8 =15 × 125 × 8 =7000 ÷ 125 ÷ 8 = 125 × 16 × 8 =1000 ÷ 125 ÷ 8 =7000 ÷ 25 ÷ 4 = 20000 ÷ 4 ÷ 25 =19000 ÷ 8 ÷ 125 =25 × 40 × 4 =25 × 75 × 4 =13 × 125 × 8 =11000 ÷ 8 ÷ 125 = 34 × 25 × 4 =10000 ÷ 125 ÷ 8 =20000 ÷ 125 ÷ 8 = 17000 ÷ 125 ÷ 8 =19 × 125 × 8 =7000 ÷ 8 ÷ 125 = 25 × 12 × 4 =10 × 125 × 8 =12000 ÷ 4 ÷ 25 = 2000 ÷ 125 ÷ 8 =20000 ÷ 25 ÷ 4 = 3 × 125 × 8 =28 × 25 × 4 =10000 ÷ 25 ÷ 4 =3000 ÷ 125 ÷ 8 = 85 × 25 × 4 =25 × 60 × 4 =6600 ÷ 25 ÷ 4 = 24 × 25 × 4 =18000 ÷ 125 ÷ 8 =26 × 25 × 4 =20 × 125 × 8 = 6 × 125 × 8 =125 × 6 × 8 =74 × 25 × 4 =25 × 48 × 4 =20000 ÷ 8 ÷ 125 = 125 × 10 × 8 =19000 ÷ 125 ÷ 8 =25 × 98 × 4 = 125 × 17 × 8 =5900 ÷ 25 ÷ 4 =8000 ÷ 4 ÷ 25 = 125 × 13 × 8 = 4 × 125 × 8 =125 × 3 × 8 =12 × 25 × 4 =16 × 125 × 8 =3000 ÷ 4 ÷ 25 = 5500 ÷ 25 ÷ 4 =25 × 33 × 4 = 13000 ÷ 125 ÷ 8 = 25 × 79 × 4 = 18 × 25 × 4 = 20000 ÷ 125 ÷ 8 = 34 × 25 × 4 = 94 × 25 × 4 = 13 × 25 × 4 = 20 × 25 × 4 = 14 × 25 × 4 = 8000 ÷ 125 ÷ 8 = 125 × 6 × 8 = 16 × 125 × 8 = 25 × 58 × 4 = 12000 ÷ 4 ÷ 25 = 12 × 125 × 8 = 8000 ÷ 8 ÷ 125 = 125 × 16 × 8 = 11000 ÷ 8 ÷ 125 = 1000 ÷ 8 ÷ 125 = 8200 ÷ 25 ÷ 4 = 5 × 25 × 4 = 10000 ÷ 25 ÷ 4 = 18000 ÷ 125 ÷ 8 = 13 × 125 × 8 = 125 × 2 × 8 = 3 × 25 × 4 = 800 ÷ 25 ÷ 4 = 62 × 25 × 4 = 10000 ÷ 4 ÷ 25 = 5000 ÷ 4 ÷ 25 = 67 × 25 × 4 = 20 × 125 × 8 = 7000 ÷ 25 ÷ 4 = 2900 ÷ 25 ÷ 4 = 6000 ÷ 125 ÷ 8 = 4000 ÷ 125 ÷ 8 = 25 × 49 × 4 = 6300 ÷ 25 ÷ 4 = 24 × 25 × 4 = 125 × 18 × 8 = 2000 ÷ 8 ÷ 125 = 2 × 125 × 8 =96 × 25 × 4 =11000 ÷ 25 ÷ 4 =练习范围:乘法交换律和结合 律 题数: 100姓名:成绩:月 日分 秒8 × 125 × 8 =16000 ÷ 8 ÷ 125 =17 × 25 × 4 = 13000 ÷ 8 ÷ 125 =6700 ÷ 25 ÷ 4 = 4 × 125 × 8 = 11000 ÷ 4 ÷ 25 =4000 ÷ 25 ÷ 4 =125 × 19 × 8 = 3000 ÷ 125 ÷ 8 =9600 ÷ 25 ÷ 4 = 3 × 125 × 8 = 3000 ÷ 25 ÷ 4 =25 × 34 × 4 =25 × 98 × 4 =52 × 25 × 4 =25 × 59 × 4 =4000 ÷ 8 ÷ 125 = 15000 ÷ 4 ÷ 25 =25 × 43 × 4 =1700 ÷ 25 ÷ 4 = 1000 ÷ 4 ÷ 25 =25 × 60 × 4 =18 × 125 × 8 = 56 × 25 × 4 =7100 ÷ 25 ÷ 4 =19000 ÷ 125 ÷ 8 = 2000 ÷ 4 ÷ 25 =6000 ÷ 4 ÷ 25 =1600 ÷ 25 ÷ 4 = 11 × 25 × 4 =8400 ÷ 25 ÷ 4 =25 × 73 × 4 = 7000 ÷ 125 ÷ 8 =7000 ÷ 4 ÷ 25 = 6 × 25 × 4 = 9100 ÷ 25 ÷ 4 =19000 ÷ 4 ÷ 25 =17 × 125 × 8 = 9000 ÷ 125 ÷ 8 =19 × 125 × 8 =25 × 5 × 4 =25 × 12 × 4 =20000 ÷ 4 ÷ 25 =125 × 5 × 8 = 10000 ÷ 8 ÷ 125 =54 × 25 × 4 =25 × 91 × 4 = 14000 ÷ 4 ÷ 25 =125 × 4 × 8 =25 × 92 × 4 =25 × 26 × 4 = 4 × 25 × 4 =16000 ÷ 125 ÷ 8 = 15 × 25 × 4 =10 × 125 × 8 = 28 × 25 × 4 = 6500 ÷ 25 ÷ 4 = 10000 ÷ 25 ÷ 4 = 17000 ÷ 4 ÷ 25 = 15 × 125 × 8 = 12000 ÷ 125 ÷ 8 = 125 × 16 × 8 = 125 × 20 × 8 = 14000 ÷ 25 ÷ 4 = 8200 ÷ 25 ÷ 4 = 16 × 125 × 8 = 200 ÷ 25 ÷ 4 = 125 × 14 × 8 = 25 × 48 × 4 = 9 × 125 × 8 = 125 × 6 × 8 = 25 × 36 × 4 = 125 × 5 × 8 = 125 × 18 × 8 = 25 × 79 × 4 = 25 × 60 × 4 = 125 × 4 × 8 = 25 × 32 × 4 = 3000 ÷ 4 ÷ 25 = 25 × 61 × 4 = 125 × 7 × 8 = 74 × 25 × 4 = 125 × 19 × 8 = 8000 ÷ 8 ÷ 125 = 72 × 25 × 4 = 800 ÷ 25 ÷ 4 = 8 × 25 × 4 = 19 × 125 × 8 = 25 × 59 × 4 = 125 × 9 × 8 = 3000 ÷ 25 ÷ 4 = 5 × 125 × 8 = 2 × 125 × 8 = 6 × 125 × 8 = 25 × 92 × 4 = 4 × 125 × 8 = 1900 ÷ 25 ÷ 4 =6000 ÷ 125 ÷ 8 =13000 ÷ 4 ÷ 25 =练习范围:乘法交换律和结合 律 题数: 100姓名:成绩:月 日分 秒125 × 10 × 8 =2000 ÷ 4 ÷ 25 =17 × 25 × 4 = 15000 ÷ 125 ÷ 8 =15000 ÷ 4 ÷ 25 =17 × 125 × 8 = 7000 ÷ 25 ÷ 4 =10000 ÷ 8 ÷ 125 =25 × 40 × 4 =20 × 125 × 8 =8000 ÷ 4 ÷ 25 =125 × 13 × 8 = 18 × 25 × 4 =18 × 125 × 8 =4000 ÷ 125 ÷ 8 = 4000 ÷ 25 ÷ 4 =1000 ÷ 8 ÷ 125 =7300 ÷ 25 ÷ 4 = 1000 ÷ 125 ÷ 8 =12000 ÷ 8 ÷ 125 =19000 ÷ 125 ÷ 8 = 77 × 25 × 4 =67 × 25 × 4 =7000 ÷ 8 ÷ 125 = 5000 ÷ 125 ÷ 8 =25 × 39 × 4 =6000 ÷ 8 ÷ 125 = 125 × 12 × 8 =15000 ÷ 8 ÷ 125 =25 × 58 × 4 = 16000 ÷ 8 ÷ 125 =20000 ÷ 4 ÷ 25 =25 × 43 × 4 = 7000 ÷ 125 ÷ 8 =25 × 89 × 4 =25 × 99 × 4 =12 × 25 × 4 =25 × 26 × 4 =5100 ÷ 25 ÷ 4 = 5900 ÷ 25 ÷ 4 =25 × 52 × 4 =19000 ÷ 8 ÷ 125 = 25 × 17 × 4 =24 × 25 × 4 =18000 ÷ 125 ÷ 8 = 25 × 16 × 4 =2400 ÷ 25 ÷ 4 =16000 ÷ 125 ÷ 8 = 6000 ÷ 4 ÷ 25 =12 × 125 × 8 =25 × 73 × 4 =25 × 66 × 4 =3000 ÷ 125 ÷ 8 =25 × 34 × 4 =3 × 125 × 8 =13000 ÷ 8 ÷ 125 = 25 × 79 × 4 = 25 × 23 × 4 = 125 × 5 × 8 = 8000 ÷ 4 ÷ 25 = 40 × 25 × 4 = 17 × 25 × 4 = 5000 ÷ 125 ÷ 8 = 25 × 48 × 4 = 125 × 16 × 8 = 25 × 43 × 4 = 25 × 59 × 4 = 19000 ÷ 125 ÷ 8 = 6000 ÷ 4 ÷ 25 = 25 × 52 × 4 = 87 × 25 × 4 = 125 × 19 × 8 = 25 × 19 × 4 = 2000 ÷ 25 ÷ 4 = 7000 ÷ 125 ÷ 8 = 17000 ÷ 8 ÷ 125 = 17000 ÷ 25 ÷ 4 = 51 × 25 × 4 = 9000 ÷ 125 ÷ 8 = 5600 ÷ 25 ÷ 4 = 12 × 25 × 4 = 8 × 125 × 8 = 25 × 40 × 4 = 9300 ÷ 25 ÷ 4 = 8200 ÷ 25 ÷ 4 = 10000 ÷ 8 ÷ 125 = 38 × 25 × 4 = 3000 ÷ 25 ÷ 4 = 5 × 25 × 4 = 14 × 125 × 8 = 125 × 9 × 8 = 25 × 26 × 4 = 19000 ÷ 4 ÷ 25 = 12 × 125 × 8 = 16000 ÷ 4 ÷ 25 = 5000 ÷ 25 ÷ 4 = 25 × 73 × 4 = 17000 ÷ 4 ÷ 25 =18000 ÷ 125 ÷ 8 =800 ÷ 25 ÷ 4 =练习范围:乘法交换律和结合 律 题数: 100姓名:成绩:月 日分 秒125 × 4 × 8 =2800 ÷ 25 ÷ 4 =7000 ÷ 25 ÷ 4 = 19000 ÷ 8 ÷ 125 =26 × 25 × 4 =3000 ÷ 125 ÷ 8 = 25 × 27 × 4 =84 × 25 × 4 =12000 ÷ 125 ÷ 8 = 25 × 58 × 4 =4500 ÷ 25 ÷ 4 =3600 ÷ 25 ÷ 4 = 11000 ÷ 25 ÷ 4 =20 × 125 × 8 =77 × 25 × 4 =46 × 25 × 4 =13000 ÷ 125 ÷ 8 =18 × 25 × 4 = 10000 ÷ 4 ÷ 25 =9500 ÷ 25 ÷ 4 =24 × 25 × 4 = 125 × 12 × 8 =15000 ÷ 8 ÷ 125 =15 × 125 × 8 = 13 × 125 × 8 =4000 ÷ 25 ÷ 4 =74 × 25 × 4 =25 × 34 × 4 =5900 ÷ 25 ÷ 4 =125 × 20 × 8 = 17 × 125 × 8 =11000 ÷ 8 ÷ 125 =8 × 25 × 4 = 15000 ÷ 125 ÷ 8 =8000 ÷ 125 ÷ 8 =18 × 125 × 8 = 25 × 70 × 4 =8600 ÷ 25 ÷ 4 = 4 × 125 × 8 = 10000 ÷ 25 ÷ 4 =6400 ÷ 25 ÷ 4 =25 × 45 × 4 =96 × 25 × 4 =72 × 25 × 4 =9 × 25 × 4 =42 × 25 × 4 =19000 ÷ 25 ÷ 4 =16000 ÷ 125 ÷ 8 = 25 × 5 × 4 =7800 ÷ 25 ÷ 4 =25 × 91 × 4 =125 × 2 × 8 =71 × 25 × 4 = 3000 ÷ 4 ÷ 25 =7000 ÷ 4 ÷ 25 =3000 ÷ 125 ÷ 8 = 25 × 33 × 4 = 14000 ÷ 125 ÷ 8 = 7000 ÷ 4 ÷ 25 = 2000 ÷ 8 ÷ 125 = 6200 ÷ 25 ÷ 4 = 25 × 75 × 4 = 2600 ÷ 25 ÷ 4 = 25 × 44 × 4 = 125 × 18 × 8 = 25 × 48 × 4 = 12 × 25 × 4 = 2000 ÷ 125 ÷ 8 = 8800 ÷ 25 ÷ 4 = 13 × 125 × 8 = 85 × 25 × 4 = 7000 ÷ 125 ÷ 8 = 18000 ÷ 8 ÷ 125 = 87 × 25 × 4 = 62 × 25 × 4 = 19000 ÷ 125 ÷ 8 = 6700 ÷ 25 ÷ 4 = 25 × 58 × 4 = 3900 ÷ 25 ÷ 4 = 96 × 25 × 4 = 19 × 125 × 8 = 8000 ÷ 125 ÷ 8 = 12000 ÷ 125 ÷ 8 = 74 × 25 × 4 = 13000 ÷ 4 ÷ 25 = 19000 ÷ 4 ÷ 25 = 1000 ÷ 8 ÷ 125 = 4 × 125 × 8 = 8 × 25 × 4 = 7500 ÷ 25 ÷ 4 = 7000 ÷ 8 ÷ 125 = 25 × 92 × 4 = 42 × 25 × 4 = 12 × 125 × 8 = 12000 ÷ 8 ÷ 125 = 6 × 125 × 8 = 125 × 8 × 8 = 125 × 20 × 8 =7 × 125 × 8 =25 × 32 × 4 =练习范围:乘法交换律和结合 律 题数: 100姓名:成绩:月 日分 秒5000 ÷ 25 ÷ 4 =58 × 25 × 4 =4000 ÷ 125 ÷ 8 = 10 × 125 × 8 =11000 ÷ 125 ÷ 8 =25 × 12 × 4 = 6000 ÷ 125 ÷ 8 =11000 ÷ 8 ÷ 125 =25 × 13 × 4 = 7000 ÷ 25 ÷ 4 =25 × 49 × 4 =125 × 11 × 8 = 14 × 25 × 4 =17000 ÷ 125 ÷ 8 =25 × 35 × 4 = 8200 ÷ 25 ÷ 4 =17000 ÷ 8 ÷ 125 =20 × 125 × 8 = 11 × 125 × 8 =6000 ÷ 4 ÷ 25 =25 × 2 × 4 =125 × 7 × 8 =125 × 4 × 8 =10000 ÷ 8 ÷ 125 = 125 × 9 × 8 =16 × 125 × 8 =32 × 25 × 4 = 5000 ÷ 125 ÷ 8 =25 × 28 × 4 =8000 ÷ 8 ÷ 125 = 54 × 25 × 4 =6100 ÷ 25 ÷ 4 =125 × 12 × 8 = 77 × 25 × 4 =29 × 25 × 4 =25 × 66 × 4 =66 × 25 × 4 =25 × 76 × 4 =25 × 5 × 4 =15 × 125 × 8 =78 × 25 × 4 =10000 ÷ 25 ÷ 4 = 1000 ÷ 4 ÷ 25 =52 × 25 × 4 =25 × 60 × 4 =17 × 25 × 4 =14000 ÷ 8 ÷ 125 =18000 ÷ 125 ÷ 8 = 6400 ÷ 25 ÷ 4 =11000 ÷ 4 ÷ 25 =8000 ÷ 4 ÷ 25 =2000 ÷ 4 ÷ 25 =3000 ÷ 4 ÷ 25 = 1000 ÷ 125 ÷ 8 =125 × 5 × 8 =1000 ÷ 125 ÷ 8 = 18000 ÷ 125 ÷ 8 = 24 × 25 × 4 = 6 × 125 × 8 = 125 × 13 × 8 = 3 × 25 × 4 = 6000 ÷ 8 ÷ 125 = 18000 ÷ 8 ÷ 125 = 25 × 59 × 4 = 80 × 25 × 4 = 18 × 25 × 4 = 4 × 125 × 8 = 12000 ÷ 125 ÷ 8 = 17 × 125 × 8 = 1000 ÷ 4 ÷ 25 = 67 × 25 × 4 = 64 × 25 × 4 = 25 × 34 × 4 = 46 × 25 × 4 = 5600 ÷ 25 ÷ 4 = 5 × 25 × 4 = 25 × 4 × 4 = 16000 ÷ 125 ÷ 8 = 125 × 9 × 8 = 25 × 73 × 4 = 11000 ÷ 4 ÷ 25 = 65 × 25 × 4 = 25 × 49 × 4 = 125 × 6 × 8 = 16000 ÷ 8 ÷ 125 = 7000 ÷ 4 ÷ 25 = 19 × 125 × 8 = 25 × 12 × 4 = 5000 ÷ 125 ÷ 8 = 8000 ÷ 125 ÷ 8 = 17000 ÷ 8 ÷ 125 = 3000 ÷ 125 ÷ 8 = 12 × 25 × 4 = 125 × 4 × 8 = 88 × 25 × 4 = 92 × 25 × 4 = 10000 ÷ 25 ÷ 4 = 87 × 25 × 4 =2600 ÷ 25 ÷ 4 =125 × 2 × 8 =练习范围:乘法交换律和结合 律 题数: 100姓名:成绩:月 日分 秒25 × 66 × 4 =34 × 25 × 4 =23 × 25 × 4 = 85 × 25 × 4 =1000 ÷ 8 ÷ 125 =28 × 25 × 4 = 5000 ÷ 8 ÷ 125 =25 × 43 × 4 =125 × 7 × 8 = 20000 ÷ 25 ÷ 4 =13000 ÷ 8 ÷ 125 =8000 ÷ 4 ÷ 25 = 16 × 125 × 8 = 3 × 125 × 8 =1000 ÷ 25 ÷ 4 = 19000 ÷ 125 ÷ 8 =54 × 25 × 4 =125 × 15 × 8 = 25 × 40 × 4 =18000 ÷ 4 ÷ 25 =2500 ÷ 25 ÷ 4 = 9 × 125 × 8 =7000 ÷ 8 ÷ 125 =12 × 125 × 8 = 91 × 25 × 4 =16000 ÷ 4 ÷ 25 =125 × 19 × 8 = 12000 ÷ 4 ÷ 25 =3900 ÷ 25 ÷ 4 =3000 ÷ 25 ÷ 4 = 6400 ÷ 25 ÷ 4 =62 × 25 × 4 =8 × 125 × 8 = 25 × 92 × 4 =20000 ÷ 4 ÷ 25 =25 × 79 × 4 = 25 × 38 × 4 =3000 ÷ 4 ÷ 25 =7000 ÷ 25 ÷ 4 = 7000 ÷ 125 ÷ 8 =25 × 91 × 4 =4300 ÷ 25 ÷ 4 = 10000 ÷ 4 ÷ 25 =99 × 25 × 4 =9000 ÷ 125 ÷ 8 = 17 × 25 × 4 =19000 ÷ 4 ÷ 25 =25 × 27 × 4 = 6700 ÷ 25 ÷ 4 =14000 ÷ 125 ÷ 8 =125 × 11 × 8 = 25 × 48 × 4 =25 × 58 × 4 =14000 ÷ 4 ÷ 25 = 70 × 25 × 4 =125 × 18 × 8 = 24 × 25 × 4 = 25 × 72 × 4 = 18000 ÷ 125 ÷ 8 = 125 × 2 × 8 = 9 × 125 × 8 = 27 × 25 × 4 = 5000 ÷ 125 ÷ 8 = 5400 ÷ 25 ÷ 4 = 6000 ÷ 125 ÷ 8 = 25 × 59 × 4 = 54 × 25 × 4 = 125 × 16 × 8 = 3400 ÷ 25 ÷ 4 = 16 × 125 × 8 = 25 × 79 × 4 = 125 × 19 × 8 = 42 × 25 × 4 = 125 × 8 × 8 = 8 × 25 × 4 = 25 × 40 × 4 = 6000 ÷ 4 ÷ 25 = 3000 ÷ 4 ÷ 25 = 3 × 25 × 4 = 13000 ÷ 8 ÷ 125 = 25 × 36 × 4 = 16000 ÷ 8 ÷ 125 = 12 × 125 × 8 = 4000 ÷ 125 ÷ 8 = 17000 ÷ 125 ÷ 8 = 12000 ÷ 4 ÷ 25 = 5 × 25 × 4 = 6400 ÷ 25 ÷ 4 = 3 × 125 × 8 = 73 × 25 × 4 = 800 ÷ 25 ÷ 4 = 41 × 25 × 4 = 5 × 125 × 8 = 48 × 25 × 4 = 3000 ÷ 125 ÷ 8 = 9000 ÷ 125 ÷ 8 = 25 × 43 × 4 = 15000 ÷ 8 ÷ 125 =68 × 25 × 4 =13 × 125 × 8 =练习范围:乘法交换律和结合 律 题数: 100姓名:成绩:月 日分 秒10000 ÷ 125 ÷ 8 =6000 ÷ 8 ÷ 125 =47 × 25 × 4 =25 × 71 × 4 =1000 ÷ 25 ÷ 4 =25 × 48 × 4 =34 × 25 × 4 =9500 ÷ 25 ÷ 4 =19 × 125 × 8 = 17 × 25 × 4 =10000 ÷ 25 ÷ 4 =8000 ÷ 4 ÷ 25 = 125 × 15 × 8 =10000 ÷ 4 ÷ 25 =67 × 25 × 4 = 125 × 5 × 8 =25 × 74 × 4 =125 × 10 × 8 = 15000 ÷ 125 ÷ 8 =125 × 13 × 8 =11 × 125 × 8 = 25 × 34 × 4 =16 × 25 × 4 =25 × 60 × 4 = 125 × 7 × 8 =19000 ÷ 125 ÷ 8 =8300 ÷ 25 ÷ 4 = 8200 ÷ 25 ÷ 4 =8 × 125 × 8 =12 × 25 × 4 = 3000 ÷ 25 ÷ 4 =17000 ÷ 8 ÷ 125 =14000 ÷ 8 ÷ 125 = 125 × 17 × 8 =6700 ÷ 25 ÷ 4 =84 × 25 × 4 =25 × 80 × 4 =10000 ÷ 8 ÷ 125 =12000 ÷ 8 ÷ 125 = 25 × 75 × 4 =62 × 25 × 4 =9000 ÷ 8 ÷ 125 = 87 × 25 × 4 =125 × 6 × 8 =77 × 25 × 4 =25 × 26 × 4 =25 × 13 × 4 = 6 × 125 × 8 =25 × 92 × 4 =46 × 25 × 4 =7900 ÷ 25 ÷ 4 = 85 × 25 × 4 =125 × 9 × 8 =1000 ÷ 8 ÷ 125 = 25 × 98 × 4 =5 × 125 × 8 = 7000 ÷ 25 ÷ 4 = 9000 ÷ 25 ÷ 4 = 9000 ÷ 125 ÷ 8 = 2000 ÷ 8 ÷ 125 = 74 × 25 × 4 = 6400 ÷ 25 ÷ 4 = 20000 ÷ 125 ÷ 8 = 25 × 66 × 4 = 13 × 125 × 8 = 51 × 25 × 4 = 19000 ÷ 4 ÷ 25 = 12 × 125 × 8 = 25 × 74 × 4 = 6000 ÷ 4 ÷ 25 = 5000 ÷ 8 ÷ 125 = 5600 ÷ 25 ÷ 4 = 62 × 25 × 4 = 25 × 26 × 4 = 125 × 3 × 8 = 25 × 60 × 4 = 25 × 73 × 4 = 46 × 25 × 4 = 25 × 40 × 4 = 25 × 37 × 4 = 5000 ÷ 125 ÷8 = 25 × 35 × 4 = 4000 ÷ 8 ÷ 125 = 6000 ÷ 125 ÷ 8 = 17 × 125 × 8 = 16000 ÷ 125 ÷ 8 = 10000 ÷ 8 ÷ 125 = 34 × 25 × 4 = 5800 ÷ 25 ÷ 4 = 15 × 125 × 8 = 25 × 34 × 4 = 24 × 25 × 4 = 6700 ÷ 25 ÷ 4 = 125 × 16 × 8 = 8 × 25 × 4 = 15000 ÷ 125 ÷ 8 = 25 × 98 × 4 = 77 × 25 × 4 =20 × 125 × 8 =4000 ÷ 125 ÷ 8 =练习范围:乘法交换律和结合 律 题数: 100姓名:成绩:月 日分 秒18 × 125 × 8 =3000 ÷ 4 ÷ 25 =25 × 43 × 4 =25 × 91 × 4 =3000 ÷ 125 ÷ 8 =90 × 25 × 4 = 16000 ÷ 4 ÷ 25 =7000 ÷ 8 ÷ 125 =15000 ÷ 8 ÷ 125 = 18000 ÷ 125 ÷ 8 =2000 ÷ 4 ÷ 25 = 4 × 125 × 8 =87 × 25 × 4 =12000 ÷ 8 ÷ 125 =800 ÷ 25 ÷ 4 = 10000 ÷ 125 ÷ 8 =25 × 88 × 4 =19 × 125 × 8 = 16 × 25 × 4 =125 × 2 × 8 =125 × 14 × 8 = 6100 ÷ 25 ÷ 4 =96 × 25 × 4 =7000 ÷ 125 ÷ 8 = 25 × 75 × 4 =300 ÷ 25 ÷ 4 =11000 ÷ 4 ÷ 25 = 7800 ÷ 25 ÷ 4 =125 × 5 × 8 =55 × 25 × 4 =25 × 92 × 4 =25 × 6 × 4 =7 × 125 × 8 =18 × 25 × 4 =25 × 48 × 4 =125 × 7 × 8 =11 × 125 × 8 =1000 ÷ 4 ÷ 25 =125 × 17 × 8 = 85 × 25 × 4 =1000 ÷ 8 ÷ 125 =3300 ÷ 25 ÷ 4 = 25 × 12 × 4 =16000 ÷ 8 ÷ 125 =25 × 50 × 4 = 125 × 6 × 8 =125 × 10 × 8 =6000 ÷ 25 ÷ 4 = 38 × 25 × 4 =12000 ÷ 4 ÷ 25 =2000 ÷ 125 ÷ 8 = 6 × 125 × 8 =25 × 2 × 4 =2300 ÷ 25 ÷ 4 = 19000 ÷ 8 ÷ 125 =6000 ÷ 125 ÷ 8 = 10 × 125 × 8 = 1000 ÷ 4 ÷ 25 = 96 × 25 × 4 = 18 × 125 × 8 = 27 × 25 × 4 = 16000 ÷ 8 ÷ 125 = 1100 ÷ 25 ÷ 4 = 7000 ÷ 125 ÷ 8 = 9000 ÷ 125 ÷ 8 = 25 × 46 × 4 = 25 × 40 × 4 = 6000 ÷ 4 ÷ 25 = 5600 ÷ 25 ÷ 4 = 20000 ÷ 25 ÷ 4 = 125 × 11 × 8 = 25 × 53 × 4 = 52 × 25 × 4 = 83 × 25 × 4 = 25 × 48 × 4 = 125 × 15 × 8 = 13 × 125 × 8 = 100 ÷ 25 ÷ 4 = 98 × 25 × 4 = 7000 ÷ 25 ÷ 4 = 18000 ÷ 125 ÷ 8 = 25 × 24 × 4 = 15000 ÷ 8 ÷ 125 = 24 × 25 × 4 = 1000 ÷ 125 ÷ 8 = 25 × 59 × 4 = 25 × 55 × 4 = 15 × 125 × 8 = 6400 ÷ 25 ÷ 4 = 8 × 25 × 4 = 54 × 25 × 4 = 25 × 67 × 4 = 16000 ÷ 4 ÷ 25 = 25 × 91 × 4 = 10000 ÷ 25 ÷ 4 = 25 × 34 × 4 = 2000 ÷ 125 ÷ 8 = 125 × 9 × 8 =1000 ÷ 8 ÷ 125 =125 × 10 × 8 =练习范围:乘法交换律和结合 律 题数: 100姓名:成绩:月 日分 秒3000 ÷ 4 ÷ 25 =34 × 25 × 4 =3400 ÷ 25 ÷ 4 = 25 × 61 × 4 =125 × 12 × 8 =25 × 66 × 4 = 19000 ÷ 125 ÷ 8 =3000 ÷ 125 ÷ 8 =4000 ÷ 8 ÷ 125 = 9200 ÷ 25 ÷ 4 =25 × 79 × 4 =7000 ÷ 8 ÷ 125 = 5000 ÷ 8 ÷ 125 =62 × 25 × 4 =16 × 125 × 8 = 14 × 25 × 4 =25 × 56 × 4 =5000 ÷ 4 ÷ 25 = 19000 ÷ 4 ÷ 25 =25 × 73 × 4 =7800 ÷ 25 ÷ 4 = 25 × 20 × 4 =25 × 76 × 4 = 6 × 125 × 8 = 7000 ÷ 4 ÷ 25 =85 × 25 × 4 =125 × 16 × 8 = 8 × 125 × 8 =9000 ÷ 4 ÷ 25 =25 × 75 × 4 =17 × 25 × 4 =125 × 19 × 8 = 5 × 125 × 8 =18 × 25 × 4 =11000 ÷ 125 ÷ 8 =25 × 58 × 4 = 125 × 4 × 8 =25 × 95 × 4 =25 × 81 × 4 = 10000 ÷ 4 ÷ 25 =12000 ÷ 4 ÷ 25 =25 × 60 × 4 = 17 × 125 × 8 =11000 ÷ 4 ÷ 25 =87 × 25 × 4 = 18000 ÷ 4 ÷ 25 =3000 ÷ 25 ÷ 4 =125 × 5 × 8 = 25 × 52 × 4 =8200 ÷ 25 ÷ 4 = 5 × 25 × 4 =42 × 25 × 4 =600 ÷ 25 ÷ 4 = 8000 ÷ 125 ÷ 8 =14000 ÷ 4 ÷ 25 =19 × 125 × 8 = 19000 ÷ 125 ÷ 8 = 54 × 25 × 4 = 125 × 16 × 8 = 3000 ÷ 125 ÷ 8 = 25 × 82 × 4 = 125 × 10 × 8 = 66 × 25 × 4 = 34 × 25 × 4 = 3700 ÷ 25 ÷ 4 = 25 × 56 × 4 = 15 × 125 × 8 = 14 × 25 × 4 = 6000 ÷ 8 ÷ 125 = 125 × 19 × 8 = 25 × 40 × 4 = 13 × 125 × 8 = 3900 ÷ 25 ÷ 4 = 14000 ÷ 8 ÷ 125 = 8700 ÷ 25 ÷ 4 = 9000 ÷ 25 ÷ 4 = 16000 ÷ 8 ÷ 125 = 24 × 25 × 4 = 2000 ÷ 4 ÷ 25 = 1000 ÷ 125 ÷ 8 = 25 × 92 × 4 = 18000 ÷ 125 ÷ 8 = 6600 ÷ 25 ÷ 4 = 18000 ÷ 4 ÷ 25 = 7800 ÷ 25 ÷ 4 = 14000 ÷ 4 ÷ 25 = 87 × 25 × 4 = 5 × 25 × 4 = 15000 ÷ 8 ÷ 125 = 25 × 43 × 4 = 7700 ÷ 25 ÷ 4 = 800 ÷ 25 ÷ 4 = 5000 ÷ 125 ÷ 8 = 46 × 25 × 4 = 125 × 5 × 8 = 7000 ÷ 25 ÷ 4 = 13000 ÷ 8 ÷ 125 = 25 × 98 × 4 =67 × 25 × 4 =125 × 15 × 8 =练习范围:乘法交换律和结合 律 题数: 100姓名:成绩:月 日分 秒6700 ÷ 25 ÷ 4 =125 × 4 × 8 =39 × 25 × 4 =16 × 125 × 8 =125 × 3 × 8 =6000 ÷ 125 ÷ 8 = 1000 ÷ 4 ÷ 25 =125 × 12 × 8 =12 × 125 × 8 = 19000 ÷ 8 ÷ 125 =19000 ÷ 4 ÷ 25 =7000 ÷ 8 ÷ 125 = 25 × 66 × 4 =19 × 25 × 4 =12000 ÷ 125 ÷ 8 = 25 × 78 × 4 =8400 ÷ 25 ÷ 4 =5000 ÷ 8 ÷ 125 = 25 × 58 × 4 =4400 ÷ 25 ÷ 4 =17000 ÷ 4 ÷ 25 = 13000 ÷ 4 ÷ 25 =25 × 73 × 4 =7 × 125 × 8 = 9000 ÷ 125 ÷ 8 =4100 ÷ 25 ÷ 4 =10000 ÷ 25 ÷ 4 = 63 × 25 × 4 =96 × 25 × 4 =125 × 11 × 8 = 18 × 25 × 4 =125 × 8 × 8 =25 × 34 × 4 = 13000 ÷ 125 ÷ 8 =8000 ÷ 125 ÷ 8 =83 × 25 × 4 =29 × 25 × 4 =4300 ÷ 25 ÷ 4 =6000 ÷ 4 ÷ 25 = 8 × 125 × 8 =25 × 75 × 4 =25 × 59 × 4 =17 × 25 × 4 =20000 ÷ 8 ÷ 125 =6400 ÷ 25 ÷ 4 = 74 × 25 × 4 =25 × 49 × 4 =25 × 48 × 4 =3 × 125 × 8 =25 × 93 ×4 =7000 ÷ 4 ÷ 25 = 125 × 13 × 8 = 5 × 125 × 8 =200 ÷ 25 ÷ 4 = 125 × 2 × 8 =。

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乘法交换律与结合律练习题
一、仔细想,认真填
1、两个数相加,交换加数的,和不变,这叫做( ) 。

用字母表示为( )。

2、三个数相加,先把( )相加,再与( ) 相加;或者先把( ) 相加,再与( ) 相加,它们的和不变,这叫做( ) 。

用字母表示为( ) 。

3、两个数相乘,交换乘数的( ) ,积不变,这叫做( ) 。

用字母表示为( ) 。

4、三个数相乘,先把( ) 相乘,再与( ) 相乘;或者先把( ) 相乘,再与( ) 相乘,它们的积不变,这叫做( ) 。

用字母表示为( ) 。

5、用字母a、b、c 表示下面运算定律:
(l)加法交换律( );
(2)加法结合律( );
(3)乘法交换律( );
(4)乘法结合律( )。

6、73+99+27=99+(73+27) 是根据加法( )律和( )律; 9×125×8 =9×(125×8),这里运用了乘法( )律; (25×37)×4=37×(25×4)。

这里运用了乘法( )律和( )律。

7、在○里填>、<或=符号。

125×24○125×8×3 27×4×25○27×(4×25) 67×8○68×7
8、在□内填上数,在○内填上运算符号,在横线上填上运用的运算定律。

29+37+171=37+(□○□) 42×5×8=42×(□○□) 47+□=28○□
427+39+73=(427+□)○□35×21×2=21×(□○□)
a+(30+8)=(□+□)+8 □+28=□+18 45×□=32×□(4+8)×25=□×□+□×□这题你会吗?
9、计算64×26 后,可以交换两个乘数的位置进行验算,是运用了( )律。

10、25×(20×39)=(25×20)×39 这是运用了( )律。

二、对号入座:(把正确的答案的序号填在括号里)
1、下面一个零也不读的数是( )。

A.600030 B.603000 C.600300
2、与480×40 的积一样的算式是( )。

A.48×40 B.480×400 C.48×400
3、用两个4 和三个0 可以组成( )个不同的五位数。

A.3 B.4 C.5
4、32+29+68+41=32+68+(29+41)这是根据( )。

A.加法交换律
B.加法结合律
C.加法交换律和结合律
5、49×25×4=49×(25×4)这是根据( )。

A.乘法交换律
B.乘法分配律
C.乘法结合律
6、下面算式中( )运用了乘法交换律和结合律。

A、(47×5)×12=47×(5×12)
B、a×b×a×c=a×(b×c)
C、4×a×5=a×(4×5)
7、25X 656+75X 656=(25+75)X 656 是运用了( )。

A.乘法分配律
B. 乘法交换律
C.乘法结合律
8、986-297 的简便算法是( )A.986-300-3 B.986-300+3 C.986-200-97
D.986-(300+3)
三、计算
1、口算我最棒。

50×70= 40×30= 25×40= 160×3= 24×2= 60×40= 200×7= 12×30= 22×40= 25×2= 25×20= 48×20= 300×50= 180×6= 80-15= 12×3= 320×3= 25×4= 50×2= 210÷7= 90×0= 30÷5= 200÷4= 18×4= 125×37×8= 598+99= 396-28-22= 369+43+57= 27×16+73×16=
2、笔算下面各题。

(1)列竖式计算。

128×46= 403×24= 130×35= 42×102= 305×24= 350×46= 123×37= 306×24= 308×32= 259×34= 四、用简便方法计算。

44+37+56 168+49+61 125×23×8 25×23×4 74+(137+326)
189+35+211+165 94+38+106+62 25×36×4 65×5×2
125×15×8 125×24 25×36
五、怎样简便就怎样算
(1)127+352+73 (2)244+89+111 (3)26+71+74+29 (4)35×125×8
(5) 97×25×4 (6)125×18×8 (7)36×25 (8)25×64×125
六、把“>、<、=”填在合适的○里
496-120-230○496-(12+230) 192+(95-75)○192+95-75 198×8×l0○198×8+10 720÷36÷2○720÷(36÷2) 18×4÷2○18×(4+2) 280-70+30○280-(70+30) 70×3+5○70×(3+5) (65+13)×4○65×4+13
2、下面的题怎样算简便就怎样算。

44×25 591+482+118 99×126 986+1999
473+79-63 4600÷25÷4 136×101-136 4600÷25÷4 136×101-136 32×37+68×37 36×25 25×125×32 490÷35 25×64×125 989-186-14 125X88。

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