Talen 1485 till 1491 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 1485 | = | MCDLXXXV | = | 1000 + 500 − 100 + 50 + 10 + 10 + 10 + 5 |
| 1486 | = | MCDLXXXVI | = | 1000 + 500 − 100 + 50 + 10 + 10 + 10 + 5 + 1 |
| 1487 | = | MCDLXXXVII | = | 1000 + 500 − 100 + 50 + 10 + 10 + 10 + 5 + 1 + 1 |
| 1488 | = | MCDLXXXVIII | = | 1000 + 500 − 100 + 50 + 10 + 10 + 10 + 5 + 1 + 1 + 1 |
| 1489 | = | MCDLXXXIX | = | 1000 + 500 − 100 + 50 + 10 + 10 + 10 + 10 − 1 |
| 1490 | = | MCDXC | = | 1000 + 500 − 100 + 100 − 10 |
| 1491 | = | MCDXCI | = | 1000 + 500 − 100 + 100 − 10 + 1 |