Question

1.25x0.6x8.8的简便方法？

Answer 1

因为8.8=8×1.1，所以原式等于1.25×0.6×8×1.1，运用乘法结合律改变运算顺序可以有（1.25×8）×（0.6×1.1）=6.6

Answer 2

1.25×0.6×8.8,在题干中出现了1.25，那么就想到8这个数。然后我们看到8.8可以拆成8×1.1。那么这个式子就变成了1.25×0.6×8×1.1=（1.25×8）×0.6×1.1＝10×0.6×1.1=6.6

Answer 3

1.25x0.7x8.8的简便方法：=1.25x0.7x(8x1.1)=1.25x8x0.7x1.1 =10x0.7x1.1 =7x1.1 =7.7

Answer 4

1.25x0.6x8.8
=1.25×0.6×1.1×8
=1.25×8×(0.6×1.1)
=10×0.66
=6.6

Answer 5

1.25×0.7×8.8简便运算：1.25×0.7×8.8 =1.25×8.8×0.7 =1.25×(8+0.8)×0.7 =(1.25×8+1.25×0.8)×0.7 =(10+1)×0.7 =11×0.7 =7.7 ...