8.95乘0.25减0.95乘0.25等于几?
问题描述:
8.95乘0.25减0.95乘0.25等于几?
急!
答
8.95*0.25-0.95*0.25
=(8.95-0.95)*0.25(乘法结合律)
=8*0.25
=2