The numbers 1901 to 1907 in roman numerals
The right column shows how each roman numeral adds up to the total.
| 1901 | = | MCMI | = | 1000 + 1000 − 100 + 1 |
| 1902 | = | MCMII | = | 1000 + 1000 − 100 + 1 + 1 |
| 1903 | = | MCMIII | = | 1000 + 1000 − 100 + 1 + 1 + 1 |
| 1904 | = | MCMIV | = | 1000 + 1000 − 100 + 5 − 1 |
| 1905 | = | MCMV | = | 1000 + 1000 − 100 + 5 |
| 1906 | = | MCMVI | = | 1000 + 1000 − 100 + 5 + 1 |
| 1907 | = | MCMVII | = | 1000 + 1000 − 100 + 5 + 1 + 1 |