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.
计算:2008×200920092009-2009×200820082008=______.
2008×200920092009-2009×200820082008
=2008×2009×100010001-2009×2008×100010001,
=100010001×(2008×2009-2008×2009),
=0.
故答案为:0.