The numbers 28 to 34 in roman numerals
The right column shows how each roman numeral adds up to the total.
| 28 | = | XXVIII | = | 10 + 10 + 5 + 1 + 1 + 1 |
| 29 | = | XXIX | = | 10 + 10 + 10 − 1 |
| 30 | = | XXX | = | 10 + 10 + 10 |
| 31 | = | XXXI | = | 10 + 10 + 10 + 1 |
| 32 | = | XXXII | = | 10 + 10 + 10 + 1 + 1 |
| 33 | = | XXXIII | = | 10 + 10 + 10 + 1 + 1 + 1 |
| 34 | = | XXXIV | = | 10 + 10 + 10 + 5 − 1 |