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数学
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3.75×182+81.8×37.5如何简便计算
人气:239 ℃ 时间:2020-01-27 07:45:57
解答
3.75×182+81.8×37.5
=37.5×18.2+81.8×37.5
=37.5(18.2+81.8)
=37.5 ×100
=3750
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