99又44/45*(-99)的简便运算过程是什么?
人气:350 ℃ 时间:2020-02-06 08:47:31
解答
99又44/45*(-99)
=(100-1/45)*(-99)
=100*(-99)-1/45*(-99)
=-9900+11/5
=-9897又4/5
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