Puzzle Detail
Classic Mathdoku Classic 9×9 Medium — Set 18
| 1-5 | 7= | 48x | 19+ | 3= | ||||
| 6= | 17+ | 2= | 8 | 5= | 3x | 9= | 168x4 | |
| 2 | 13+ | 9/1 | 15x | |||||
| 5= | 9 | 6 | 12x | 6- | ||||
| 120x | 2= | 11+ | 2- | 32x | 5+ | |||
| 9= | 6 | 105x | 14+ | |||||
| 28x | 11+ | 11+ | 5 | |||||
| 9= | 20+ | 13+ | 9+ | 3- | ||||
| 18x3 | 7+ | 4- | 8=8 | 1= | 9=9 |
Show solution
| 4 | 5 | 7 | 1 | 6 | 2 | 9 | 8 | 3 |
| 6 | 7 | 2 | 8 | 5 | 1 | 3 | 9 | 4 |
| 2 | 8 | 9 | 4 | 1 | 3 | 5 | 6 | 7 |
| 8 | 3 | 4 | 5 | 9 | 6 | 2 | 7 | 1 |
| 5 | 2 | 1 | 9 | 7 | 8 | 4 | 3 | 6 |
| 9 | 4 | 6 | 7 | 3 | 5 | 1 | 2 | 8 |
| 7 | 1 | 8 | 3 | 2 | 9 | 6 | 4 | 5 |
| 1 | 9 | 3 | 6 | 8 | 4 | 7 | 5 | 2 |
| 3 | 6 | 5 | 2 | 4 | 7 | 8 | 1 | 9 |
Solver Notes
Our classic mathdoku puzzles mix all four operations (addition, subtraction, multiplication, division) just like the original KenKen format.
What makes a mathdoku puzzle classic?
Classic mathdoku uses cages with any of the four arithmetic operations, matching the original KenKen-style puzzle format.
Are classic mathdoku puzzles good for beginners?
Start with the 4x4 classic grid — it's the easiest entry point into the full mathdoku experience.
Where can I print classic mathdoku?
Every puzzle page on Freemathdoku.com has a Print button that generates a clean PDF with the answer key.