23.4阧0.8阧13.4阧7.2简便方法

2025-04-28 10:07:47
推荐回答(1个)
回答1:

23.4-0.8-13.4-7.2
=23.4-13.4-0.8-7.2
=(23.4-13.4)-(0.8+7.2)
=10-8
=2