Talen 1842 till 1848 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 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 |
| 1845 | = | MDCCCXLV | = | 1000 + 500 + 100 + 100 + 100 + 50 − 10 + 5 |
| 1846 | = | MDCCCXLVI | = | 1000 + 500 + 100 + 100 + 100 + 50 − 10 + 5 + 1 |
| 1847 | = | MDCCCXLVII | = | 1000 + 500 + 100 + 100 + 100 + 50 − 10 + 5 + 1 + 1 |
| 1848 | = | MDCCCXLVIII | = | 1000 + 500 + 100 + 100 + 100 + 50 − 10 + 5 + 1 + 1 + 1 |