5.669.32+138.640.05+693.2*0.43 简便算法

分类: 作业答案 • 2021-12-28 17:08:52

问题描述：

5.6*69.32+138.64*0.05+693.2*0.43 简便算法

答

5.6*69.32+138.64*0.05+693.2*0.43
=5.6*69.32+6.932+693.2*0.43
=56x6.932+6.932+6.932x43
=6.932x(56+43+1)
=6.932x100
=693.2

5.6*69.32+138.64*0.05+693.2*0.43 简便算法