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73×37分之21+37分之16×75 怎么简算
人气:412 ℃ 时间:2019-12-04 08:13:49
解答
73×21/37+16/37×75
=73×21/37+16/37×(73+2)
=73×21/37+16/37×73+16/37×2
=73×(21/37+16/37)+16/37×2
=73×1+16/37×2
=73又32/37
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