> 数学 >
0.91÷4/5+1.25×1.09 (简便计算)
人气:267 ℃ 时间:2019-09-26 00:20:55
解答
0.91÷4/5+1.25×1.09
=(1-0.09)×1.25+1.25×(1+0.09)
=1.25×(1-0.09+1+0.09)
=1.25×2
=2.5
推荐
猜你喜欢
© 2025 79432.Com All Rights Reserved.
电脑版|手机版