简便算：8.68-8.68/0.56*0.5

分类: 作业答案 • 2021-12-19 11:36:15

问题描述：

答

8.68-8.68/0.56*0.5
=8.68(1-0.5/0.56)
=8.68×(1-50/56)
=8.68×6/56
=8.68×3/28
=0.93