Puzzle Detail
Classic Mathdoku Classic 9×9 Medium — Set 7
| 8= | 10+ | 21x3 | 15+ | 4= | ||||
| 8= | 2- | 4- | 7 | 1= | 8- | |||
| 63x | 2= | 48x | 9+ | 5 | ||||
| 9= | 72x | 5= | 21x3 | 5+ | 8= | |||
| 6= | 7= | 1= | 9= | 4-8 | 5= | |||
| 6+ | 1= | 9= | 12+2 | 30x | 7=7 | |||
| 12x | 5=5 | 11+ | 17+ | 6 | ||||
| 40x | 1= | 9= | 2 | 4/ | 6= | 4= | 7= | 36x3 |
| 8 | 120x | 19+ |
Show solution
| 8 | 5 | 7 | 3 | 1 | 9 | 2 | 6 | 4 |
| 3 | 2 | 8 | 6 | 4 | 5 | 7 | 1 | 9 |
| 7 | 9 | 2 | 8 | 6 | 4 | 5 | 3 | 1 |
| 9 | 6 | 4 | 5 | 7 | 3 | 1 | 2 | 8 |
| 6 | 7 | 3 | 1 | 9 | 2 | 8 | 4 | 5 |
| 4 | 3 | 1 | 9 | 2 | 8 | 6 | 5 | 7 |
| 2 | 4 | 5 | 7 | 3 | 1 | 9 | 8 | 6 |
| 5 | 1 | 9 | 2 | 8 | 6 | 4 | 7 | 3 |
| 1 | 8 | 6 | 4 | 5 | 7 | 3 | 9 | 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.