Puzzle Detail
Classic Mathdoku Classic 8×8 Hard — Set 99
| 20+ | 5- | 1= | |||||
| 2= | 576x | 3- | 30x | ||||
| 13+ | 8= | 11+ | 2 | ||||
| 3= | 120x | 14x | 20+ | ||||
| 48x | 4 | 84x | 2= | ||||
| 6+ | 5= | 168x | |||||
| 15+ | 12+ | 6x | |||||
| 18+ | 27+5 | 3= |
Show solution
| 5 | 7 | 2 | 3 | 8 | 6 | 4 | 1 |
| 8 | 6 | 7 | 2 | 3 | 4 | 1 | 5 |
| 4 | 3 | 8 | 5 | 1 | 2 | 7 | 6 |
| 3 | 4 | 6 | 7 | 2 | 1 | 5 | 8 |
| 6 | 8 | 5 | 1 | 4 | 3 | 2 | 7 |
| 1 | 2 | 3 | 8 | 5 | 7 | 6 | 4 |
| 7 | 5 | 1 | 4 | 6 | 8 | 3 | 2 |
| 2 | 1 | 4 | 6 | 7 | 5 | 8 | 3 |
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.