66乘35加35加33乘55用简便计算

分类: 作业答案 • 2021-12-20 05:41:44

问题描述：

66乘35加35加33乘55用简便计算

答

66*35+35*1+33*55
=（66+1）*35+33*（20+35）
=67*35+33*35+33*20
=（67+33）*35+660
=100*35+660
=3500+660
=4160

答

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