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5.6*0.27+6.2*0.44+0.56*3.5 简便计算
人气:145 ℃ 时间:2020-04-03 06:32:41
解答
5.6*0.27+6.2*0.44+0.56*3.5
=0.56*2.7+0.56*3.5+6.2*0.44
=0.56*(2.7+3.5)+6.2*0.44
=0.56*6.2+6.2*0.44
=6.2*(0.56+0.44)
=6.2*1
=6.2
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