The numbers 799 to 805 in roman numerals
The right column shows how each roman numeral adds up to the total.
| 799 | = | DCCXCIX | = | 500 + 100 + 100 + 100 − 10 + 10 − 1 |
| 800 | = | DCCC | = | 500 + 100 + 100 + 100 |
| 801 | = | DCCCI | = | 500 + 100 + 100 + 100 + 1 |
| 802 | = | DCCCII | = | 500 + 100 + 100 + 100 + 1 + 1 |
| 803 | = | DCCCIII | = | 500 + 100 + 100 + 100 + 1 + 1 + 1 |
| 804 | = | DCCCIV | = | 500 + 100 + 100 + 100 + 5 − 1 |
| 805 | = | DCCCV | = | 500 + 100 + 100 + 100 + 5 |