4.82-(0.75-0.5)×0.2怎么简便计算
问题描述:
4.82-(0.75-0.5)×0.2怎么简便计算
答
4.82-(0.75-0.5)×0.2
=4.82-0.25×0.2
=4.82-0.05
=4.77