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1.3+1.7=3还是:1.3+1.7=3.0[b] [size=24] ?[/size]

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1.3+1.7=3还是:1.3+1.7=3.0[b] [size=24] ?[/size] Empty 1.3+1.7=3还是:1.3+1.7=3.0[b] [size=24] ?[/size]

帖子  华爱杰 周二 六月 21, 2011 9:22 am

三年级数学中的小数加法中,1.3+1.7=3还是:1.3+1.7=3.0[b]
4米+6分米=4.6米还是等于4.60米?

华爱杰

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