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56+44×56 巧算
人气:325 ℃ 时间:2020-04-02 20:28:43
解答
56+44×56
=56乘以(44+1)
=56乘以45
=56乘以(50-5)
=56乘以50-56乘以5
=2800-280
=2520
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