18.76*9.9+100.1简便计算

分类: 作业答案 • 2021-12-28 16:19:13

问题描述：

18.76*9.9+100.1简便计算

答

18.76*9.9+100.1
=18.76*（10-0.1）+100+0.1
=18.76*10-18.76*0.1+100+0.1
=187.6+100+0.1-1.876
=287.6-1.776
=285.824