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数学
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20092009*2008与20082008*2009的差是多少
要简算,请写出简算步骤,
我可以给20分,如果好的还可以加分.
人气:429 ℃ 时间:2019-10-19 11:45:23
解答
20092009x2008-20082008x2009
=10001x2009x2008-10001x2008x2009
=0
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