36乘56加72乘22的简便方法
上面的问题怎样简便
人气：306 ℃ 时间：2019-09-19 21:31:48
解答
36×56+72×22=36×2×28﹢36×2×22=36×2×﹙28+22）=36×2×50=3600
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