Talen 1581 till 1587 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 1581 | = | MDLXXXI | = | 1000 + 500 + 50 + 10 + 10 + 10 + 1 |
| 1582 | = | MDLXXXII | = | 1000 + 500 + 50 + 10 + 10 + 10 + 1 + 1 |
| 1583 | = | MDLXXXIII | = | 1000 + 500 + 50 + 10 + 10 + 10 + 1 + 1 + 1 |
| 1584 | = | MDLXXXIV | = | 1000 + 500 + 50 + 10 + 10 + 10 + 5 − 1 |
| 1585 | = | MDLXXXV | = | 1000 + 500 + 50 + 10 + 10 + 10 + 5 |
| 1586 | = | MDLXXXVI | = | 1000 + 500 + 50 + 10 + 10 + 10 + 5 + 1 |
| 1587 | = | MDLXXXVII | = | 1000 + 500 + 50 + 10 + 10 + 10 + 5 + 1 + 1 |