The numbers 318 to 324 in roman numerals
The right column shows how each roman numeral adds up to the total.
| 318 | = | CCCXVIII | = | 100 + 100 + 100 + 10 + 5 + 1 + 1 + 1 |
| 319 | = | CCCXIX | = | 100 + 100 + 100 + 10 + 10 − 1 |
| 320 | = | CCCXX | = | 100 + 100 + 100 + 10 + 10 |
| 321 | = | CCCXXI | = | 100 + 100 + 100 + 10 + 10 + 1 |
| 322 | = | CCCXXII | = | 100 + 100 + 100 + 10 + 10 + 1 + 1 |
| 323 | = | CCCXXIII | = | 100 + 100 + 100 + 10 + 10 + 1 + 1 + 1 |
| 324 | = | CCCXXIV | = | 100 + 100 + 100 + 10 + 10 + 5 − 1 |