The numbers 74 to 80 in roman numerals
The right column shows how each roman numeral adds up to the total.
| 74 | = | LXXIV | = | 50 + 10 + 10 + 5 − 1 |
| 75 | = | LXXV | = | 50 + 10 + 10 + 5 |
| 76 | = | LXXVI | = | 50 + 10 + 10 + 5 + 1 |
| 77 | = | LXXVII | = | 50 + 10 + 10 + 5 + 1 + 1 |
| 78 | = | LXXVIII | = | 50 + 10 + 10 + 5 + 1 + 1 + 1 |
| 79 | = | LXXIX | = | 50 + 10 + 10 + 10 − 1 |
| 80 | = | LXXX | = | 50 + 10 + 10 + 10 |