Puzzle Detail
Classic Mathdoku Classic 8×8 Hard — Set 56
| 21+ | 1- | 5= | |||||
| 240x | 15+7 | 3/ | 1= | 4/ | 8= | ||
| 10+ | 4= | 6= | |||||
| 14+ | 7= | 3= | 2= | ||||
| 48x | 15+ | 2- | 7= | 3 | |||
| 1= | 360x | 2= | 13+ | 14+ | |||
| 3=3 | 17+ | ||||||
| 12+ | 32x | 5= | 7+ |
Show solution
| 2 | 6 | 8 | 7 | 1 | 3 | 4 | 5 |
| 4 | 7 | 5 | 6 | 3 | 1 | 2 | 8 |
| 5 | 3 | 7 | 1 | 2 | 4 | 8 | 6 |
| 1 | 5 | 4 | 8 | 7 | 6 | 3 | 2 |
| 6 | 4 | 1 | 2 | 5 | 8 | 7 | 3 |
| 8 | 1 | 6 | 3 | 4 | 2 | 5 | 7 |
| 3 | 8 | 2 | 5 | 6 | 7 | 1 | 4 |
| 7 | 2 | 3 | 4 | 8 | 5 | 6 | 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.