5.5乘0.66加6.6乘0.55 简便算法是什么

分类: 作业答案 • 2022-01-04 12:36:12

问题描述：

答

5.5*0.66+6.6*0.55
=0.55*6.6+6.6*0.55
=6.6*(0.55+0.55)
=6.6*1.1
=6.6*(1+0.1)
=6.6*1+6.6*0.1
=6.6+0.66
=7.26