> 数学 >
8.3*8.3*9的简便运算
人气:224 ℃ 时间:2020-02-03 22:55:50
解答
8.3*8.3*9
=8.3*8.3*(10-1)
=8.3*(83-8.3)
=8.3*74.7
=(10-1.7)*74.7
=747-126.99
=621.01非常感谢!
推荐
猜你喜欢
© 2025 79432.Com All Rights Reserved.
电脑版|手机版