88.4*2.5-22.4/0.4简便运算

分类: 作业答案 • 2023-01-12 09:42:46

问题描述：

答

88.4*2.5-22.4/0.4
=88.4*2.5-22.4÷2/5
=88.4*2.5-22.4*2.5
=（88.4-22.4）*2.5
=60*2.5
=150