| F | A | S | T | E | N | E | R | |
| + | S | T | I | F | F | E | S | T |
| R | E | A | C | T | I | O | N |
See more puzzles containing FASTENER, REACTION or STIFFEST.
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?