2009*200820082008-2008*200920092009=???

2025-03-01 10:42:21
推荐回答(2个)
回答1:

答案为零,因为前后差1实际一减为零

回答2:

2009*200820082008-2008*200920092009
=2009×2008×100010001-2008×2009×100010001
=0