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4.56/(2.25+1.75)*10.4的简便计算!
人气:420 ℃ 时间:2019-11-20 03:32:10
解答
4.56/(2.25+1.75)*10.4
=4.65/4*10.4
=4.65*(10.4/4)
=4.65*2.6
=12.09
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