| 1 |
| 2 |
| 3 |
| 4 |
| 5 |
| 6 |
| 99 |
| 100 |
| 2 |
| 3 |
| 4 |
| 5 |
| 6 |
| 7 |
| 98 |
| 99 |
则A×B＝
| 1 |
| 2 |
| 2 |
| 3 |
| 3 |
| 4 |
| 4 |
| 5 |
| 98 |
| 99 |
| 99 |
| 100 |
| 1 |
| 100 |
| 1 |
| 10 |
因为A的每个因数都小于B的每个因数，
所以A＜B．
因此 A×A＜A×B＝(
| 1 |
| 10 |
即 A＜
| 1 |
| 10 |
| 1 |
| 2 |
| 3 |
| 4 |
| 5 |
| 6 |
| 7 |
| 8 |
| 99 |
| 100 |
| 1 |
| 10 |
| 1 |
| 2 |
| 3 |
| 4 |
| 5 |
| 6 |
| 99 |
| 100 |
| 2 |
| 3 |
| 4 |
| 5 |
| 6 |
| 7 |
| 98 |
| 99 |
| 1 |
| 2 |
| 2 |
| 3 |
| 3 |
| 4 |
| 4 |
| 5 |
| 98 |
| 99 |
| 99 |
| 100 |
| 1 |
| 100 |
| 1 |
| 10 |
| 1 |
| 10 |
| 1 |
| 10 |