Puzzle Detail
Classic Mathdoku Classic 8×8 Medium — Set 85
| 21+ | 15x3 | 2- | |||||
| 32x | 5= | 12x | 6 | 28x1 | |||
| 3= | 1- | 6= | 7= | 7+ | |||
| 13+ | 3=3 | 6= | 7 | 28x | 8 | 9+ | |
| 8+ | 6= | 7= | 20x | 11+ | |||
| 3=3 | 4= | 8= | 1- | ||||
| 2= | 12+ | 28x | 1=1 | 3= | |||
| 7= | 1=1 | 3- | 1- | 336x |
Show solution
| 6 | 7 | 8 | 1 | 5 | 3 | 2 | 4 |
| 4 | 8 | 5 | 3 | 2 | 6 | 7 | 1 |
| 8 | 1 | 3 | 2 | 6 | 7 | 4 | 5 |
| 5 | 3 | 6 | 7 | 4 | 8 | 1 | 2 |
| 1 | 5 | 2 | 6 | 7 | 4 | 8 | 3 |
| 3 | 2 | 7 | 4 | 8 | 1 | 5 | 6 |
| 2 | 6 | 4 | 8 | 1 | 5 | 3 | 7 |
| 7 | 4 | 1 | 5 | 3 | 2 | 6 | 8 |
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.