The numbers 915 to 921 in roman numerals
The right column shows how each roman numeral adds up to the total.
| 915 | = | CMXV | = | 1000 − 100 + 10 + 5 |
| 916 | = | CMXVI | = | 1000 − 100 + 10 + 5 + 1 |
| 917 | = | CMXVII | = | 1000 − 100 + 10 + 5 + 1 + 1 |
| 918 | = | CMXVIII | = | 1000 − 100 + 10 + 5 + 1 + 1 + 1 |
| 919 | = | CMXIX | = | 1000 − 100 + 10 + 10 − 1 |
| 920 | = | CMXX | = | 1000 − 100 + 10 + 10 |
| 921 | = | CMXXI | = | 1000 − 100 + 10 + 10 + 1 |