45*2.08+1.5*37.6简便运算
问题描述:
45*2.08+1.5*37.6简便运算
答
将45分成1.5乘30,再合并起来变为1.5×﹙30×2.08+37.6﹚=1.5×﹙62.4﹢37.6﹚=1.5×100=150
45*2.08+1.5*37.6简便运算
将45分成1.5乘30,再合并起来变为1.5×﹙30×2.08+37.6﹚=1.5×﹙62.4﹢37.6﹚=1.5×100=150