The numbers 64 to 70 in roman numerals
The right column shows how each roman numeral adds up to the total.
| 64 | = | LXIV | = | 50 + 10 + 5 − 1 |
| 65 | = | LXV | = | 50 + 10 + 5 |
| 66 | = | LXVI | = | 50 + 10 + 5 + 1 |
| 67 | = | LXVII | = | 50 + 10 + 5 + 1 + 1 |
| 68 | = | LXVIII | = | 50 + 10 + 5 + 1 + 1 + 1 |
| 69 | = | LXIX | = | 50 + 10 + 10 − 1 |
| 70 | = | LXX | = | 50 + 10 + 10 |