括号4⼀5-1⼀2+2⼀3括号乘三十时

括号4/5-1/2+2/3括号乘三十时
2024-11-25 04:53:08
推荐回答(1个)
回答1:

(4/5-1/团答2+2/姿或悔3)迹正x30
=4/5x30-1/2x30+2/3x30
=24-15+20
=29