| H | U | M | A | N |
| + | D | U | A | L |
| B | L | O | O | D |
See more puzzles containing BLOOD, DUAL or HUMAN.
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?