Puzzle Detail
Classic Mathdoku Classic 9×9 Medium — Set 67
| 54x | 13+5 | 3= | 2= | 4x | ||||
| 8= | 14x | 13+ | 7= | 1= | 20+ | |||
| 4-7 | 6 | 16x | 5 | 13+ | ||||
| 72x | 9 | 4= | 6/ | 8= | 6= | 24x | ||
| 6=6 | 3- | 3= | 3- | 1= | 504x | 7 | ||
| 3=3 | 1= | 16+ | 14+ | 2= | 4=4 | |||
| 7= | 3- | 2= | 9= | 1 | 11+ | |||
| 15+ | 4- | 2= | 1- | |||||
| 5= | 12x4 | 1= | 6= | 7=7 | 72x | 14x |
Show solution
| 9 | 6 | 7 | 8 | 5 | 3 | 2 | 4 | 1 |
| 8 | 3 | 2 | 4 | 9 | 7 | 1 | 6 | 5 |
| 4 | 7 | 1 | 6 | 8 | 2 | 5 | 3 | 9 |
| 2 | 9 | 4 | 1 | 7 | 8 | 6 | 5 | 3 |
| 6 | 2 | 5 | 3 | 4 | 1 | 9 | 7 | 8 |
| 3 | 1 | 9 | 7 | 6 | 5 | 8 | 2 | 4 |
| 7 | 5 | 8 | 2 | 3 | 9 | 4 | 1 | 6 |
| 1 | 8 | 6 | 5 | 2 | 4 | 3 | 9 | 7 |
| 5 | 4 | 3 | 9 | 1 | 6 | 7 | 8 | 2 |
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.