7.2÷[(1.2-0.24)×0.5]怎么简便计算?

2024-11-25 14:13:20
推荐回答(1个)
回答1:

原式=7.2÷(1.2ⅹ0.5一0.24ⅹ0.5)
=7.2÷(0.6一0.12)
=7.2÷0.48
=15