Talen 3989 till 3995 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 3989 | = | MMMCMLXXXIX | = | 1000 + 1000 + 1000 + 1000 − 100 + 50 + 10 + 10 + 10 + 10 − 1 |
| 3990 | = | MMMCMXC | = | 1000 + 1000 + 1000 + 1000 − 100 + 100 − 10 |
| 3991 | = | MMMCMXCI | = | 1000 + 1000 + 1000 + 1000 − 100 + 100 − 10 + 1 |
| 3992 | = | MMMCMXCII | = | 1000 + 1000 + 1000 + 1000 − 100 + 100 − 10 + 1 + 1 |
| 3993 | = | MMMCMXCIII | = | 1000 + 1000 + 1000 + 1000 − 100 + 100 − 10 + 1 + 1 + 1 |
| 3994 | = | MMMCMXCIV | = | 1000 + 1000 + 1000 + 1000 − 100 + 100 − 10 + 5 − 1 |
| 3995 | = | MMMCMXCV | = | 1000 + 1000 + 1000 + 1000 − 100 + 100 − 10 + 5 |