Puzzle Detail
Classic Mathdoku Classic 9×9 Medium — Set 2
| 8 | 7=7 | 5= | 2/ | 2= | 13+ | 3=3 | 45x | |
| 32x4 | 9= | 6= | 11+ | |||||
| 7 | 9=9 | 15+ | 5x | 2= | 4= | |||
| 13+ | 1- | 2- | 1= | 4- | 17+ | |||
| 2- | 7=7 | 9= | 9+ | 144x | ||||
| 13+ | 24x | 12x | 8= | 6 | ||||
| 13+ | 1=1 | 7= | 2= | |||||
| 288x | 14+ | 7= | 22+ | 7x | ||||
| 135x | 2 | 3 | 11+ | 5x | 2- | 7 |
Show solution
| 8 | 7 | 5 | 4 | 2 | 6 | 3 | 1 | 9 |
| 4 | 1 | 8 | 2 | 9 | 7 | 6 | 5 | 3 |
| 7 | 9 | 6 | 1 | 5 | 2 | 4 | 3 | 8 |
| 6 | 2 | 3 | 7 | 1 | 4 | 8 | 9 | 5 |
| 1 | 3 | 7 | 5 | 8 | 9 | 2 | 6 | 4 |
| 2 | 5 | 4 | 9 | 3 | 1 | 7 | 8 | 6 |
| 5 | 6 | 1 | 8 | 4 | 3 | 9 | 7 | 2 |
| 3 | 4 | 9 | 6 | 7 | 8 | 5 | 2 | 1 |
| 9 | 8 | 2 | 3 | 6 | 5 | 1 | 4 | 7 |
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.