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23.9-0.6*0.6-0.64怎么简便计算
人气:414 ℃ 时间:2020-04-09 00:58:59
解答
23.9-0.6*0.6-0.64
=23.9-0.36-0.64
=23.9-(0.36+0.64)
=23.9-1
=22.9
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