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数学
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9.999*1111+3.333*6667的简便算法怎么算
人气:162 ℃ 时间:2020-05-02 07:04:30
解答
=3.333×3×1111+3.333×6667
=3.333×3333+3.333×6667
=(3333+6667)×3.333
=10000×3.333
=33330
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