52.5*0.63+3.7*5.25怎么用简便计算
问题描述:
52.5*0.63+3.7*5.25怎么用简便计算
答
52.5*0.63+3.7*5.25
=52.5*0.63+0.37*52.5
=52.5*(0.63+0.37)
=52.5*1
=52.5