Question

2.5×0.32×1.25

2.5×0.32×1.25用简便计算求姐题思路，尽量用文字表述，谢谢。

Answer 1

0.32拆成0.4×0.8
2.5×0.4=1
1.25×0.8=1
所以结果是1

Answer 2

2.5×0.32×1.25
=2.5×0.4x0.8×1.25
=（2.5x0.4）x（0.8x1.25）
=1x1
=1

Answer 3

2.5x0.4x0.8x1.25=1x1=1

Answer 4

2.5×0.32×1.25
=（2.5×0.4）×（0.8×1.55）
=1×1
=1

Answer 5

2.5×0.32×1.25
=2.5×0.4×0.8×1.25
=1×1
=1