4.6×0.75+0.46×2.5的简便运算

分类: 作业答案 • 2022-03-02 08:58:20

问题描述：

答

4.6×0.75+0.46×2.5
=4.6×0.75+4.6×0.25
=（0.75+0.25）×4.6
=1×4.6
=4.6