Talen 2978 till 2984 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 2978 | = | MMCMLXXVIII | = | 1000 + 1000 + 1000 − 100 + 50 + 10 + 10 + 5 + 1 + 1 + 1 |
| 2979 | = | MMCMLXXIX | = | 1000 + 1000 + 1000 − 100 + 50 + 10 + 10 + 10 − 1 |
| 2980 | = | MMCMLXXX | = | 1000 + 1000 + 1000 − 100 + 50 + 10 + 10 + 10 |
| 2981 | = | MMCMLXXXI | = | 1000 + 1000 + 1000 − 100 + 50 + 10 + 10 + 10 + 1 |
| 2982 | = | MMCMLXXXII | = | 1000 + 1000 + 1000 − 100 + 50 + 10 + 10 + 10 + 1 + 1 |
| 2983 | = | MMCMLXXXIII | = | 1000 + 1000 + 1000 − 100 + 50 + 10 + 10 + 10 + 1 + 1 + 1 |
| 2984 | = | MMCMLXXXIV | = | 1000 + 1000 + 1000 − 100 + 50 + 10 + 10 + 10 + 5 − 1 |