32x0.25x12.5 9.6x28.5+0.285x40 用简便方法计算(要过程)

2024-12-04 19:07:27
推荐回答(1个)
回答1:

32*0.25*12.5
=(8*4)*0.25*12.5
=(8*12.5)*(0.25*4)
=100*1
=100