Puzzle Detail
Classic Mathdoku Classic 9×9 Medium — Set 88
| 2- | 17+ | 3 | 19+ | 1= | 6= | |||
| 6= | 21+ | 16+ | 7 | 1= | 2= | 3= | ||
| 24x | 8+ | 40x8 | 5= | 4= | 9+ | 2= | ||
| 72x | 4= | 6= | 3 | |||||
| 27x3 | 6= | 1= | 2= | 1- | 280x | |||
| 9+ | 16+2 | 3= | 3- | |||||
| 3 | 4= | 7=7 | 11+ | 8 | ||||
| 280x | 3/2 | 3- | 240x | 27x3 | 4-5 | |||
| 6= | 16+ | 3= | 2= | 3- |
Show solution
| 2 | 4 | 5 | 8 | 3 | 9 | 7 | 1 | 6 |
| 8 | 6 | 4 | 5 | 9 | 7 | 1 | 2 | 3 |
| 3 | 1 | 7 | 9 | 8 | 5 | 4 | 6 | 2 |
| 9 | 2 | 1 | 7 | 5 | 4 | 6 | 3 | 8 |
| 4 | 9 | 3 | 6 | 1 | 2 | 8 | 5 | 7 |
| 1 | 5 | 8 | 2 | 6 | 3 | 9 | 7 | 4 |
| 5 | 3 | 6 | 4 | 7 | 1 | 2 | 8 | 9 |
| 7 | 8 | 2 | 1 | 4 | 6 | 3 | 9 | 5 |
| 6 | 7 | 9 | 3 | 2 | 8 | 5 | 4 | 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.