Talen 984 till 990 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 984 | = | CMLXXXIV | = | 1000 − 100 + 50 + 10 + 10 + 10 + 5 − 1 |
| 985 | = | CMLXXXV | = | 1000 − 100 + 50 + 10 + 10 + 10 + 5 |
| 986 | = | CMLXXXVI | = | 1000 − 100 + 50 + 10 + 10 + 10 + 5 + 1 |
| 987 | = | CMLXXXVII | = | 1000 − 100 + 50 + 10 + 10 + 10 + 5 + 1 + 1 |
| 988 | = | CMLXXXVIII | = | 1000 − 100 + 50 + 10 + 10 + 10 + 5 + 1 + 1 + 1 |
| 989 | = | CMLXXXIX | = | 1000 − 100 + 50 + 10 + 10 + 10 + 10 − 1 |
| 990 | = | CMXC | = | 1000 − 100 + 100 − 10 |