计算下面各题能简算的要简算5⼀9乘以括号9⼀5加18括号答案是多少?

2024-11-28 10:48:31
推荐回答(1个)
回答1:

5/9×(9/5+18)
=5/9×(9/5)+(5/9)×18
=1+10
=11