问题 解答题

计算:2008×200920092009-2009×200820082008=______.

答案

2008×200920092009-2009×200820082008
=2008×2009×100010001-2009×2008×100010001,

=100010001×(2008×2009-2008×2009),
=0.

故答案为:0.

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