(5⼀4-3⼀4+1⼀4)×60的简便运算?

简便运算
2024-11-30 00:42:18
推荐回答(1个)
回答1:

(5/4-3/4+1/4)×60
=5/4×60-3/4×60+1/4×60
=75-45+15
=45