Puzzle Detail
Classic Mathdoku Classic 9×9 Easy — Set 9
| 1-4 | 7= | 1= | 9=9 | 8=8 | 6= | 3= | 7-2 | 1- |
| 4= | 1- | 5= | 1= | 8= | 2= | 6 | ||
| 8/ | 3= | 5=5 | 9= | 28x7 | 6+ | |||
| 7= | 1= | 8=8 | 3/6 | 5= | 27x | |||
| 13+8 | 11+ | 5 | 4=4 | 9= | 8x2 | 6x1 | 15+ | 3= |
| 9=9 | 2= | 1= | 3= | 7 | ||||
| 1- | 2-9 | 6x3 | 8 | 1= | 11+ | |||
| 2= | 1- | 6=6 | 7=7 | 72x9 | ||||
| 11+ | 3= | 8= | 4=4 | 7x7 | 5= | 1- | 9+ |
Show solution
| 4 | 7 | 1 | 9 | 8 | 6 | 3 | 2 | 5 |
| 3 | 4 | 7 | 5 | 1 | 8 | 2 | 9 | 6 |
| 1 | 8 | 6 | 3 | 5 | 9 | 7 | 4 | 2 |
| 7 | 1 | 8 | 2 | 6 | 5 | 4 | 3 | 9 |
| 8 | 6 | 5 | 4 | 9 | 2 | 1 | 7 | 3 |
| 5 | 9 | 2 | 1 | 3 | 4 | 6 | 8 | 7 |
| 6 | 5 | 9 | 7 | 2 | 3 | 8 | 1 | 4 |
| 2 | 3 | 4 | 6 | 7 | 1 | 9 | 5 | 8 |
| 9 | 2 | 3 | 8 | 4 | 7 | 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.