The Roman numeral CXII equals 112.
CXII is built by adding these Roman numeral groups together:
Add them up: C + X + II = 112.
| Number | Roman numeral |
|---|---|
| 109 | CIX |
| 110 | CX |
| 111 | CXI |
| 112 | CXII |
| 113 | CXIII |
| 114 | CXIV |
| 115 | CXV |
Roman numerals use seven letters, each with a fixed value: I = 1, V = 5, X = 10, L = 50, C = 100, D = 500, and M = 1000. Numbers are formed by combining these symbols and adding their values, working from the largest to the smallest.
When a smaller symbol appears before a larger one, it is subtracted instead of added — this is the subtractive rule. For example, IV is 4 (5 − 1) and IX is 9 (10 − 1). The same idea gives XL (40), XC (90), CD (400), and CM (900). The same symbol is never repeated more than three times in a row.
| Symbol | Value |
|---|---|
| I | 1 |
| V | 5 |
| X | 10 |
| L | 50 |
| C | 100 |
| D | 500 |
| M | 1,000 |