Talen 1838 till 1844 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 1838 | = | MDCCCXXXVIII | = | 1000 + 500 + 100 + 100 + 100 + 10 + 10 + 10 + 5 + 1 + 1 + 1 |
| 1839 | = | MDCCCXXXIX | = | 1000 + 500 + 100 + 100 + 100 + 10 + 10 + 10 + 10 − 1 |
| 1840 | = | MDCCCXL | = | 1000 + 500 + 100 + 100 + 100 + 50 − 10 |
| 1841 | = | MDCCCXLI | = | 1000 + 500 + 100 + 100 + 100 + 50 − 10 + 1 |
| 1842 | = | MDCCCXLII | = | 1000 + 500 + 100 + 100 + 100 + 50 − 10 + 1 + 1 |
| 1843 | = | MDCCCXLIII | = | 1000 + 500 + 100 + 100 + 100 + 50 − 10 + 1 + 1 + 1 |
| 1844 | = | MDCCCXLIV | = | 1000 + 500 + 100 + 100 + 100 + 50 − 10 + 5 − 1 |