18.76*9.9+1.879怎么简便运算

分类: 作业答案 • 2021-12-24 16:57:59

问题描述：

答

18.76*9.9+1.879
=1.876*99+1.876+0.003
=1.876*（99+1）+0.003
=1.876*100+0.003
=187.6+0.003
=187.603怎样吧18 .76*9.9+1.876=1.876*99+1.876