Talen 1084 till 1090 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 1084 | = | MLXXXIV | = | 1000 + 50 + 10 + 10 + 10 + 5 − 1 |
| 1085 | = | MLXXXV | = | 1000 + 50 + 10 + 10 + 10 + 5 |
| 1086 | = | MLXXXVI | = | 1000 + 50 + 10 + 10 + 10 + 5 + 1 |
| 1087 | = | MLXXXVII | = | 1000 + 50 + 10 + 10 + 10 + 5 + 1 + 1 |
| 1088 | = | MLXXXVIII | = | 1000 + 50 + 10 + 10 + 10 + 5 + 1 + 1 + 1 |
| 1089 | = | MLXXXIX | = | 1000 + 50 + 10 + 10 + 10 + 10 − 1 |
| 1090 | = | MXC | = | 1000 + 100 − 10 |