The numbers 549 to 555 in roman numerals
The right column shows how each roman numeral adds up to the total.
| 549 | = | DXLIX | = | 500 + 50 − 10 + 10 − 1 |
| 550 | = | DL | = | 500 + 50 |
| 551 | = | DLI | = | 500 + 50 + 1 |
| 552 | = | DLII | = | 500 + 50 + 1 + 1 |
| 553 | = | DLIII | = | 500 + 50 + 1 + 1 + 1 |
| 554 | = | DLIV | = | 500 + 50 + 5 − 1 |
| 555 | = | DLV | = | 500 + 50 + 5 |