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(13-8.4)*0.99简便计算
人气:352 ℃ 时间:2020-04-03 06:36:33
解答
(13-8.4)*0.99
=4.6*0.99
=4.6*(1-0.01)
=4.6*1-4.6*0.01
=4.6-0.046
=4.554
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