111...1×999...9

2024-12-29 17:03:17
推荐回答(2个)
回答1:

11111111...1(2008个1)×999999999...9(2008个9)
=11111111...1(2008个1)×(10000000...(2008个0)-1)
=1111111...100000...0(2008个1,2008个0)-11111111...1(2008个1)
=11111...1(2007个1)0888888.....(2007个8)9

回答2:

=11111111...1(2008个1)×(10000...(2008个0)-1)
=111111...1000...00(2008个1,2008个0)-1111...111(2008个1)
=11111...10888...89(2007个1,2007个8)