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简便方法计算9.6*28.5+0.285*41
人气:195 ℃ 时间:2025-11-04 16:10:23
解答

9.6*28.5+0.285*41
=9.6*28.5+28.5*0.41
=(9.6+0.4)*28.5+0.1*28.5
=285+2.85
=287.85

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