Talen 430 till 436 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 430 | = | CDXXX | = | 500 − 100 + 10 + 10 + 10 |
| 431 | = | CDXXXI | = | 500 − 100 + 10 + 10 + 10 + 1 |
| 432 | = | CDXXXII | = | 500 − 100 + 10 + 10 + 10 + 1 + 1 |
| 433 | = | CDXXXIII | = | 500 − 100 + 10 + 10 + 10 + 1 + 1 + 1 |
| 434 | = | CDXXXIV | = | 500 − 100 + 10 + 10 + 10 + 5 − 1 |
| 435 | = | CDXXXV | = | 500 − 100 + 10 + 10 + 10 + 5 |
| 436 | = | CDXXXVI | = | 500 − 100 + 10 + 10 + 10 + 5 + 1 |