Puzzle Detail
Classic Mathdoku Classic 8×8 Hard — Set 85
| 2= | 23+ | 120x | 7/ | ||||
| 7= | 2= | 3= | 4 | 6= | 16+ | ||
| 36x | 5= | 6= | 1= | 7= | |||
| 8= | 3 | 6= | 3- | 14x | |||
| 5=5 | 14+ | 18x | |||||
| 4= | 6= | 1= | 7= | 96x | |||
| 5= | 70x | 3= | |||||
| 336x | 6x | 64x | 20x | 6= |
Show solution
| 2 | 8 | 4 | 3 | 6 | 5 | 7 | 1 |
| 7 | 2 | 3 | 8 | 4 | 6 | 1 | 5 |
| 3 | 4 | 5 | 6 | 1 | 7 | 8 | 2 |
| 8 | 3 | 6 | 4 | 5 | 1 | 2 | 7 |
| 5 | 1 | 2 | 7 | 8 | 3 | 6 | 4 |
| 4 | 6 | 1 | 5 | 7 | 2 | 3 | 8 |
| 6 | 5 | 7 | 1 | 2 | 8 | 4 | 3 |
| 1 | 7 | 8 | 2 | 3 | 4 | 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.