> 数学 >
(1)6.43+2.58-6.43+2.58
(2)6.6*9.8
人气:101 ℃ 时间:2020-02-05 21:32:27
解答
6.43+2.58-6.43+2.58
=6.43-6.43+2.58+2.58
=5.16
6.6*9.8
=6.6*10-6.6*0.2
=66-1.32
=64.68
推荐
猜你喜欢
© 2025 79432.Com All Rights Reserved.
电脑版|手机版