439-148 48的简便计算?

2025-04-03 15:27:01
推荐回答(2个)
回答1:

简便计算过程方法如下
解:439-148+48
=439-(148-48)
=439-100
=339

回答2:

439-148+48
=439-(148-48)
=439-100
=339