题目内容
| 2008+2007×2009 |
| 2008×2009-1 |
| 2008+2007×2009 |
| 2008×2009-1 |
=
| 2008+2007×(2008+1) |
| 2008×(2008+1)-1 |
=
| 2008+2007×2008+2007 |
| 2008×2008+2008-1 |
=
| 2008×2008+2007 |
| 2008×2008+2007 |
=1.
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相关题目
题目内容
| 2008+2007×2009 |
| 2008×2009-1 |
| 2008+2007×2009 |
| 2008×2009-1 |
| 2008+2007×(2008+1) |
| 2008×(2008+1)-1 |
| 2008+2007×2008+2007 |
| 2008×2008+2008-1 |
| 2008×2008+2007 |
| 2008×2008+2007 |