Puzzle Detail
Classic Mathdoku Classic 9×9 Easy — Set 99
| 8= | 9=9 | 7=7 | 4= | 12x | 6+ | |||
| 5= | 5- | 4=4 | 9=9 | 21x7 | 3-8 | 1 | 6x2 | |
| 4x | 7=7 | 3=3 | 2= | 9= | 48x | |||
| 2 | 2/ | 9+5 | 15+ | 8 | 17+ | 3= | 7= | |
| 2=2 | 5= | 7= | 6= | 2- | 8= | 4x4 | ||
| 7=7 | 4=4 | 4/ | 5= | 3= | 9= | 1 | ||
| 9=9 | 15x3 | 8= | 1- | 1- | 28x | 11+6 | ||
| 9= | 12x | 3= | 32x | |||||
| 2/ | 8= | 1= | 7 | 2-5 | 5+ | 2= | 9=9 |
Show solution
| 8 | 1 | 9 | 7 | 4 | 6 | 2 | 5 | 3 |
| 5 | 6 | 4 | 9 | 3 | 7 | 8 | 1 | 2 |
| 1 | 7 | 3 | 4 | 2 | 9 | 5 | 6 | 8 |
| 4 | 2 | 1 | 5 | 6 | 8 | 9 | 3 | 7 |
| 2 | 5 | 7 | 6 | 9 | 1 | 3 | 8 | 4 |
| 7 | 4 | 8 | 2 | 5 | 3 | 6 | 9 | 1 |
| 9 | 3 | 5 | 8 | 1 | 2 | 7 | 4 | 6 |
| 6 | 9 | 2 | 3 | 8 | 4 | 1 | 7 | 5 |
| 3 | 8 | 6 | 1 | 7 | 5 | 4 | 2 | 9 |
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.