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口算(x﹣3)×2= 3a+4a= m﹣0.40m= a﹣0.14a=2a+a= x﹣0.4x= 1.5b+b= 5d﹣2d=2x×y= 12×4b= n×n= 72×3=
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教案备课库《2016-2017学年青岛版五年级(上)数学同步练习卷(2)》真题及答案
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