Puzzle Detail
Classic Mathdoku Classic 8×8 Hard — Set 2
| 6= | 8= | 3= | 5= | 9+ | 35x | ||
| 7= | 4= | 8= | |||||
| 30x | 11+ | ||||||
| 5- | 1= | 5- | 18+ | 15+ | |||
| 5= | 15+ | 140x1 | 8= | ||||
| 1- | 160x | 108x | |||||
| 1- | 2= | 6= | 7= | 8= | 5= | ||
| 2 | 2/ | 3= | 6 | 12+ | 7= |
Show solution
| 6 | 8 | 3 | 5 | 4 | 1 | 7 | 2 |
| 7 | 6 | 4 | 8 | 2 | 3 | 5 | 1 |
| 8 | 5 | 1 | 7 | 3 | 2 | 6 | 4 |
| 3 | 1 | 7 | 2 | 5 | 6 | 4 | 8 |
| 5 | 7 | 2 | 6 | 1 | 4 | 8 | 3 |
| 4 | 3 | 5 | 1 | 8 | 7 | 2 | 6 |
| 1 | 2 | 6 | 4 | 7 | 8 | 3 | 5 |
| 2 | 4 | 8 | 3 | 6 | 5 | 1 | 7 |
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.