545-75 25的简便运算怎么计算?

2024-11-18 17:29:04
推荐回答(2个)
回答1:

简便计算过程方法如下
解:545-75+25
=545+25-75
=570-75
=495

回答2:

545-75 +25
=545-(75-25)
=545-50
=495