66乘35加35加33乘55用简便计算

分类: 作业答案 • 2021-12-27 15:03:56

问题描述：

66乘35加35加33乘55用简便计算

答

66*35+35+33*55
=35*(66+1)+33*55
=35*67+33*(35+20)
=35*(67+33)+33*20
=3500+660
=4160