用简便方法计算 1-3⼀5+1⼀2-2⼀5

2024-11-26 00:54:37
推荐回答(1个)
回答1:

简便计算:
1-3/5+1/2-2/5
=1-(3/5+2/5)+1/2
=1-1+1/2
=0+1/2
=1/2
(望采纳,谢谢)