0.87*3.16+4.64怎么样运算简便

分类: 作业答案 • 2022-01-02 13:35:21

问题描述：

答

0.87*3.16+4.64
=(1-0.13)*3.16+4.64
=3.16-0.13*3.16+4.64
=7.8-0.4108
=7.3892
楼主，希望采纳

答

0.87*3.16+4.64
=(1-0.13)*3.16+4.64
=3.16-0.13*3.16+4.64
=7.8-0.4108
=7.3892