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7.6乘以5.6减去46乘以0.76的简便方法怎么做
人气:271 ℃ 时间:2020-04-27 06:58:29
解答
7.6x5.6-46x0.76=7.6x5.6-4.6x7.6=7.6x(5.6-4.6)=7.6x1=7.6
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