> 数学 >
40.7减2.6以9.3简便算法怎么算
人气:471 ℃ 时间:2019-10-31 03:25:35
解答
40.7减2.6以9.3
=40.7-2.6×(10-0.7)
=40.7-2.6×10+2.6×0.7
=40.7-26+1.82
=14.7+1.82
=16.52
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版