| 1 |
| a-2 |
| 4 |
| 4-a2 |
| 1 |
| a-2 |
| 4 |
| a2-4 |
| jxy |
| xj-yj |
| y |
| x-y |
| 1 |
| a+1 |
| m |
| m×2 |
| m |
| 2 |
| m |
| 2×3 |
| m |
| 2 |
| m |
| 3 |
| m |
| 3×4 |
| m |
| 3 |
| m |
| 4 |
| m |
| n(n+m) |
| m |
| n |
| m |
| n+m |
| m |
| n |
| m |
| n+m |
| m |
| m×2 |
| m |
| 2×3 |
| m |
| 3×4 |
| m |
| 20mm×20m2 |
| 20mm |
| 20m2 |
| 20mm |
| 20m2 |
| m |
| m×3 |
| m |
| 3×b |
| m |
| b×7 |
| m |
| (2m-m)(2m+m) |
| m |
| 2m+m |
| m |
| 2m+m |
| 1 |
| a |
| 1 |
| b |
| 1 |
| b |
| 1 |
| c |
| 1 |
| 1×2×3 |
| 1 |
| 2 |
| 2 |
| 1×3 |
| 1 |
| 2×3×二 |
| 1 |
| 3 |
| 3 |
| 2×二 |
| 1 |
| 3×二×八 |
| 1 |
| 二 |
| 二 |
| 3×八 |
| x五 |
| x-e |
| e五 |
| x-e |
| 1 |
| x-2 |
| 4 |
| x2-4 |
| 2a2 |
| a-2 |
| 8 |
| 2-a |