Puzzle Detail
Classic Mathdoku Classic 9×9 Medium — Set 6
| 5 | 12+ | 9+ | 8 | 8x1 | 4= | 7= | 9=9 | |
| 6= | 5- | 7=7 | 180x5 | |||||
| 7= | 11+ | 6= | 5= | 3= | 5+ | |||
| 4= | 189x | 1= | 1- | 9= | 8 | 2= | ||
| 8= | 3- | 11+ | 80x | 6= | 1= | |||
| 2 | 4= | 5= | 7= | 3=3 | ||||
| 11+ | 8+3 | 54x6 | 11+ | 17+ | ||||
| 7= | 4- | 135x5 | ||||||
| 12+ | 2= | 14+ | 5- | 24x | 1= | 8= |
Show solution
| 5 | 6 | 2 | 3 | 8 | 1 | 4 | 7 | 9 |
| 6 | 1 | 4 | 2 | 3 | 8 | 7 | 9 | 5 |
| 7 | 9 | 8 | 1 | 6 | 5 | 3 | 2 | 4 |
| 4 | 7 | 1 | 6 | 5 | 9 | 8 | 3 | 2 |
| 8 | 3 | 9 | 7 | 4 | 2 | 5 | 6 | 1 |
| 2 | 4 | 6 | 5 | 9 | 7 | 1 | 8 | 3 |
| 9 | 5 | 3 | 8 | 1 | 6 | 2 | 4 | 7 |
| 1 | 8 | 7 | 4 | 2 | 3 | 9 | 5 | 6 |
| 3 | 2 | 5 | 9 | 7 | 4 | 6 | 1 | 8 |
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.