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数学
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8.67-5.8+1.33怎么简便计算?
人气:471 ℃ 时间:2020-05-21 00:01:41
解答
采用加法交换律和加法结合律
8.67-5.8+1.33=8.67+1.33-5.8=(8.67+1.33)-5.8=10-5.8=4.2
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