> 数学 >
17×0.25+1/4+2×25% 怎么简便计算?
人气:236 ℃ 时间:2020-03-26 15:39:07
解答
17×0.25+1/4+2×25%
=17×0.25+0.25+2×0.25
=0.25×(17+1+2)
=0.25×20
=5
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版