> 数学 >
22*0.75+25*百分之75-7*0.75怎么简算
人气:466 ℃ 时间:2020-03-26 03:32:09
解答
22*0.75+25*百分之75-7*0.75
=0.75*(22+25-7)
=0.75*40
=30
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版