Puzzle Detail
Classic Mathdoku Classic 8×8 Hard — Set 52
| 2= | 11+ | 11+ | 7/ | 64x | |||
| 10+ | 7 | 1= | 168x | ||||
| 18+ | 5= | 1= | |||||
| 5 | 4 | 19+ | 1- | 16+ | 6= | ||
| 120x | 12+ | ||||||
| 9+ | 4/ | 6= | 8= | ||||
| 16+ | 2- | 8= | 11+ | 210x | |||
| 24+ | 20x |
Show solution
| 6 | 2 | 8 | 3 | 5 | 7 | 1 | 4 |
| 4 | 7 | 5 | 1 | 6 | 3 | 2 | 8 |
| 3 | 4 | 2 | 5 | 7 | 8 | 6 | 1 |
| 5 | 1 | 4 | 7 | 8 | 2 | 3 | 6 |
| 8 | 3 | 6 | 2 | 4 | 1 | 7 | 5 |
| 2 | 5 | 3 | 4 | 1 | 6 | 8 | 7 |
| 7 | 6 | 1 | 8 | 2 | 4 | 5 | 3 |
| 1 | 8 | 7 | 6 | 3 | 5 | 4 | 2 |
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.