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36.3X4.5+6.37X45简便计算
人气:466 ℃ 时间:2020-03-24 16:07:04
解答
36.3X4.5+6.37X45
=36.3X4.5+4.5X63.7
=4.5X(36.3+63.7)
=4.5X100
=450
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