Talen 975 till 981 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 975 | = | CMLXXV | = | 1000 − 100 + 50 + 10 + 10 + 5 |
| 976 | = | CMLXXVI | = | 1000 − 100 + 50 + 10 + 10 + 5 + 1 |
| 977 | = | CMLXXVII | = | 1000 − 100 + 50 + 10 + 10 + 5 + 1 + 1 |
| 978 | = | CMLXXVIII | = | 1000 − 100 + 50 + 10 + 10 + 5 + 1 + 1 + 1 |
| 979 | = | CMLXXIX | = | 1000 − 100 + 50 + 10 + 10 + 10 − 1 |
| 980 | = | CMLXXX | = | 1000 − 100 + 50 + 10 + 10 + 10 |
| 981 | = | CMLXXXI | = | 1000 − 100 + 50 + 10 + 10 + 10 + 1 |