Talen 1964 till 1970 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 1964 | = | MCMLXIV | = | 1000 + 1000 − 100 + 50 + 10 + 5 − 1 |
| 1965 | = | MCMLXV | = | 1000 + 1000 − 100 + 50 + 10 + 5 |
| 1966 | = | MCMLXVI | = | 1000 + 1000 − 100 + 50 + 10 + 5 + 1 |
| 1967 | = | MCMLXVII | = | 1000 + 1000 − 100 + 50 + 10 + 5 + 1 + 1 |
| 1968 | = | MCMLXVIII | = | 1000 + 1000 − 100 + 50 + 10 + 5 + 1 + 1 + 1 |
| 1969 | = | MCMLXIX | = | 1000 + 1000 − 100 + 50 + 10 + 10 − 1 |
| 1970 | = | MCMLXX | = | 1000 + 1000 − 100 + 50 + 10 + 10 |