Tabla del 820
| 820 | X | 1 | = | 820 |
| 820 | X | 2 | = | 1640 |
| 820 | X | 3 | = | 2460 |
| 820 | X | 4 | = | 3280 |
| 820 | X | 5 | = | 4100 |
| 820 | X | 6 | = | 4920 |
| 820 | X | 7 | = | 5740 |
| 820 | X | 8 | = | 6560 |
| 820 | X | 9 | = | 7380 |
| 820 | X | 10 | = | 8200 |
| 820 | X | 1 | = | 820 |
| 820 | X | 2 | = | 1640 |
| 820 | X | 3 | = | 2460 |
| 820 | X | 4 | = | 3280 |
| 820 | X | 5 | = | 4100 |
| 820 | X | 6 | = | 4920 |
| 820 | X | 7 | = | 5740 |
| 820 | X | 8 | = | 6560 |
| 820 | X | 9 | = | 7380 |
| 820 | X | 10 | = | 8200 |