8.2乘以7.5+4分之3乘以18 简便算法
问题描述:
8.2乘以7.5+4分之3乘以18 简便算法
答
8.2×7.5+0.75×18 =8.2×7.5+7.5×1.8 =7.5×(8.2+1.8) =7.5×10 =75
8.2乘以7.5+4分之3乘以18 简便算法
8.2×7.5+0.75×18 =8.2×7.5+7.5×1.8 =7.5×(8.2+1.8) =7.5×10 =75