| B | U | T | T | E | R | S | |
| + | O | B | S | E | R | V | E |
| R | E | F | U | E | L | S |
See more puzzles containing BUTTERS, OBSERVE or REFUELS.
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?