The numbers 509 to 515 in roman numerals
The right column shows how each roman numeral adds up to the total.
| 509 | = | DIX | = | 500 + 10 − 1 |
| 510 | = | DX | = | 500 + 10 |
| 511 | = | DXI | = | 500 + 10 + 1 |
| 512 | = | DXII | = | 500 + 10 + 1 + 1 |
| 513 | = | DXIII | = | 500 + 10 + 1 + 1 + 1 |
| 514 | = | DXIV | = | 500 + 10 + 5 − 1 |
| 515 | = | DXV | = | 500 + 10 + 5 |