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3.6*11.1+1.2*66.7=?简便算
人气:476 ℃ 时间:2020-04-15 23:10:07
解答
3.6*11.1+1.2*66.7
=1.2*33.3+1.2*66.7
=1.2*(33.3+66.7)
=1.2*100
=120
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