The numbers 1984 to 1990 in roman numerals
The right column shows how each roman numeral adds up to the total.
| 1984 | = | MCMLXXXIV | = | 1000 + 1000 − 100 + 50 + 10 + 10 + 10 + 5 − 1 |
| 1985 | = | MCMLXXXV | = | 1000 + 1000 − 100 + 50 + 10 + 10 + 10 + 5 |
| 1986 | = | MCMLXXXVI | = | 1000 + 1000 − 100 + 50 + 10 + 10 + 10 + 5 + 1 |
| 1987 | = | MCMLXXXVII | = | 1000 + 1000 − 100 + 50 + 10 + 10 + 10 + 5 + 1 + 1 |
| 1988 | = | MCMLXXXVIII | = | 1000 + 1000 − 100 + 50 + 10 + 10 + 10 + 5 + 1 + 1 + 1 |
| 1989 | = | MCMLXXXIX | = | 1000 + 1000 − 100 + 50 + 10 + 10 + 10 + 10 − 1 |
| 1990 | = | MCMXC | = | 1000 + 1000 − 100 + 100 − 10 |