Puzzle Detail
Classic Mathdoku Classic 8×8 Hard — Set 22
| 7= | 32x | 2= | 126x | ||||
| 15+ | 1=1 | 12+ | 3- | ||||
| 64x | 18+ | 336x | |||||
| 1= | 480x | ||||||
| 18x | 7= | 1= | |||||
| 11+ | 1= | 4= | 10+ | ||||
| 12+ | 26+ | 7= | 1- | ||||
| 16+ | 1 | 4= | 48x | 6=6 |
Show solution
| 7 | 8 | 4 | 1 | 2 | 3 | 6 | 5 |
| 4 | 1 | 3 | 2 | 6 | 5 | 7 | 8 |
| 5 | 6 | 8 | 7 | 4 | 1 | 3 | 2 |
| 1 | 4 | 2 | 3 | 5 | 6 | 8 | 7 |
| 2 | 3 | 6 | 5 | 8 | 7 | 1 | 4 |
| 6 | 5 | 7 | 8 | 1 | 4 | 2 | 3 |
| 3 | 2 | 5 | 6 | 7 | 8 | 4 | 1 |
| 8 | 7 | 1 | 4 | 3 | 2 | 5 | 6 |
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.