162+37-42+13怎样简便计算?

2025-03-22 04:19:40
推荐回答(5个)
回答1:

简便计算过程方法如下
解:162+37-42+13
=(162-42)+(37+13)
=120+50
=170

回答2:

162+37-42+13
=162-42+37+13
=120+50
=170

回答3:

=(162-42)+(37+13)
=120+50
=170

回答4:

162-42=120
13+37=50
120+50=170

回答5:

162+37-42+13
=(162-42)+(37+13)
=120+50
=170