23.4 0.8-13.4-7.2简算?

2025-04-28 08:42:30
推荐回答(1个)
回答1:

简便计算
23.4+0.8-13.4-7.2
=23.4-13.4+0.8-7.2
=10+0.8-7.2
=10.8-7.2
=3.6