7.25*67.875+725*0.7875+7250*0.053375用什么简便方法权
问题描述：
7.25*67.875+725*0.7875+7250*0.053375用什么简便方法权
答
7.25*67.875+725*0.7875+7250*0.053375=7.25*67.875+7.25*78.75+7.25*53.375=7.25*(67.875+78.75+53.375)=7.25*(67.875+53.375+78.75)=7.25*(121.25+78.75)=7.25*200=1450