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8.88乘9加28乘1.11的简便算法,
人气:132 ℃ 时间:2020-02-05 13:49:00
解答
8.88×9+28×1.11
=1.11×8×9+28×1.11
=1.11×(72+28)
=1.11×100
=111
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