| F | E | L | I | X |
| + | K | E | Y | S |
| O | X | I | D | E |
See more puzzles containing FELIX, KEYS or OXIDE.
Would you like to see the solution?
The rules for cryptarithm puzzles are simple. Each letter represents one of the digits 0 to 9. Different letters represent different digits. The first digit in a number can't be 0. Your job is to find out what digit each letter represents. Can you solve the puzzle shown here?