| 1 |
| 4 |
| 4 |
| 9 |
| 1 |
| 5 |
| 1 |
| 6 |
| 1 |
| 1×2 |
| 1 |
| 2 |
| 1 |
| 2×3 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 3×4 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 1×2 |
| 1 |
| 2×3 |
| 1 |
| 3×4 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 4 |
| 3 |
| 4 |
| 1 |
| n(n+1) |
| 1 |
| n |
| 1 |
| n+1 |
| 1 |
| n |
| 1 |
| n+1 |
| 1 |
| 1×2 |
| 1 |
| 2×3 |
| 1 |
| 3×4 |
| 1 |
| 2007×2005 |
| 2007 |
| 2005 |
| 2007 |
| 2005 |
| 1 |
| 1×2 |
| 1 |
| 2×3 |
| 1 |
| 3×4 |
| 1 |
| n(n+1) |
| n |
| n+1 |
| n |
| n+1 |
| 7 |
| 4 |
| 7 |
| 8 |
| 2 |
| 3 |
| 3 |
| 4 |
| 1 |
| 8 |
| 3 |
| 8 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 一 |
| 3 |
| 4 |
| 5 |
| 6 |
| 7 |
| 一 |
| 1 |
| 2 |
| 1 |
| 8 |
| 1 |
| 3 |
| 3 |
| 4 |
| a |
| b |
| 20十0(a+b) |
| 20十十 |
| a |
| b |
| 5 |
| 3 |
| 3 |
| 5 |
| 3 |
| 5 |
| 5 |
| 3 |