4⼀5-3⼀10+2⼀3(要用简便运算还要写过程)急!

2025-01-03 15:25:01
推荐回答(1个)
回答1:

4/5-3/10+2/3
=0.8-0.3+2/3
=1/2+2/3
=7/6