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5.5*13.6-0.36*55怎么简便计算?
人气:239 ℃ 时间:2020-04-07 13:34:30
解答
5.5*13.6-0.36*55
=5.5*13.6-3.6*5.5
=5.5*(13.6-3.6)
=5.5*10
=55
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