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﹣99又99分之88×198简便运算
人气:213 ℃ 时间:2020-02-02 22:36:40
解答
﹣99又99分之88×198
=-﹣99又99分之88x99x2
=(1/99-100)乘以99乘以2
=1/99乘以99乘以2-100乘以99乘以2
=2-19800
=-19798/这个是什么号?
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