Puzzle Detail
Classic Mathdoku Classic 9×9 Medium — Set 86
| 90x | 17+ | |||||||
| 2= | 135x5 | 8 | 288x | 24x6 | ||||
| 3= | 8= | 28x | 18x2 | 14+ | 90x | |||
| 14+9 | 1= | 7= | 3= | 15x5 | 48x | 18+ | ||
| 1-8 | 9 | |||||||
| 9= | 15+ | 6= | 1= | 7= | 11+ | |||
| 9+1 | 6= | 7=7 | 9= | 3- | 3= | |||
| 7=7 | 4 | 16+ | ||||||
| 8= | 10+ | 19+ | 4= | 3x | 45x | 7= |
Show solution
| 6 | 5 | 3 | 9 | 2 | 7 | 8 | 1 | 4 |
| 2 | 3 | 1 | 5 | 9 | 8 | 4 | 7 | 6 |
| 3 | 8 | 4 | 7 | 1 | 2 | 9 | 6 | 5 |
| 9 | 1 | 7 | 3 | 5 | 4 | 6 | 8 | 2 |
| 5 | 7 | 8 | 1 | 3 | 6 | 2 | 4 | 9 |
| 4 | 9 | 5 | 2 | 6 | 1 | 7 | 3 | 8 |
| 1 | 4 | 6 | 8 | 7 | 9 | 5 | 2 | 3 |
| 7 | 6 | 2 | 4 | 8 | 5 | 3 | 9 | 1 |
| 8 | 2 | 9 | 6 | 4 | 3 | 1 | 5 | 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.