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58.76-(8.76-15)怎么算
人气:160 ℃ 时间:2020-03-24 16:18:36
解答
简便算法么?
58.76-(8.76-15)
=58+0.76-(8+0.76-15)
=58+0.76-8-0.76+15
=58-8+15+0.76-0.76
=65
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