Puzzle Detail
Classic Mathdoku Classic 9×9 Medium — Set 56
| 7= | 4 | 2/2 | 9=9 | 3= | 5= | |||
| 9=9 | 24x | 6 | 1 | 12+ | 13+ | |||
| 5= | 24x | 14+ | 6= | 2= | 8= | 9= | ||
| 140x | 6= | 9= | 20x | 10+ | 8=8 | 5+ | 3- | |
| 126x | 3=3 | |||||||
| 5+ | 9= | 3- | 3= | 5- | 7=7 | |||
| 1- | 2= | 9=9 | 20x | 5- | 8= | |||
| 14+ | 10+ | 1= | 42x | 9= | 12x4 | |||
| 3/ | 4 | 5- | 315x | 1= |
Show solution
| 8 | 1 | 7 | 4 | 2 | 9 | 3 | 6 | 5 |
| 9 | 3 | 8 | 6 | 7 | 1 | 4 | 5 | 2 |
| 4 | 5 | 3 | 7 | 1 | 6 | 2 | 8 | 9 |
| 5 | 7 | 6 | 9 | 4 | 2 | 8 | 1 | 3 |
| 7 | 9 | 2 | 3 | 5 | 8 | 1 | 4 | 6 |
| 1 | 4 | 9 | 5 | 8 | 3 | 6 | 2 | 7 |
| 3 | 6 | 1 | 2 | 9 | 4 | 5 | 7 | 8 |
| 2 | 8 | 5 | 1 | 6 | 7 | 9 | 3 | 4 |
| 6 | 2 | 4 | 8 | 3 | 5 | 7 | 9 | 1 |
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.