7.2乘以5.6加0.72乘以44用简便算法算
人气：256 ℃ 时间：2020-06-04 03:41:41
解答
7.2乘以5.6加0.72乘以44
=7.2x5.6+7.2x4.4
=7.2x(5.6+4.4)
=7.2x10
=72
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