27*0.24+7.3*0.24能用简便算法
问题描述:
27*0.24+7.3*0.24能用简便算法
答
27*0.24+7.3*0.24
=34.3*(0.25-0.01)
=34.3/4-0.343
=8.575-0.343
=8.232