Talen 1168 till 1174 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 1168 | = | MCLXVIII | = | 1000 + 100 + 50 + 10 + 5 + 1 + 1 + 1 |
| 1169 | = | MCLXIX | = | 1000 + 100 + 50 + 10 + 10 − 1 |
| 1170 | = | MCLXX | = | 1000 + 100 + 50 + 10 + 10 |
| 1171 | = | MCLXXI | = | 1000 + 100 + 50 + 10 + 10 + 1 |
| 1172 | = | MCLXXII | = | 1000 + 100 + 50 + 10 + 10 + 1 + 1 |
| 1173 | = | MCLXXIII | = | 1000 + 100 + 50 + 10 + 10 + 1 + 1 + 1 |
| 1174 | = | MCLXXIV | = | 1000 + 100 + 50 + 10 + 10 + 5 − 1 |