Puzzle Detail
Classic Mathdoku Classic 9×9 Easy — Set 59
| 2= | 1= | 4= | 8= | 5= | 13+ | 1- | 3= | |
| 1= | 14x | 5= | 6- | 6 | 2- | 5-9 | ||
| 7=7 | 1= | 3=3 | 10+ | 20x5 | 4 | |||
| 5=5 | 3-3 | 8 | 2=2 | 6x | 9= | 4 | 7= | |
| 27x3 | 3- | 7=7 | 8= | 4= | 12x | |||
| 20x4 | 3=3 | 7x | 6= | 2- | 2= | 1= | 8= | |
| 72x | 5 | 6= | 4= | 2=2 | 7 | 27x | 1= | |
| 2- | 8 | 7= | 13+ | 6+ | 5 | 3 | 6x | |
| 4=4 | 2= | 9=9 | 6= | 8=8 | 3= | 1= | 2- |
Show solution
| 2 | 1 | 4 | 8 | 5 | 9 | 7 | 6 | 3 |
| 1 | 7 | 2 | 5 | 3 | 4 | 6 | 8 | 9 |
| 7 | 6 | 1 | 3 | 9 | 2 | 8 | 5 | 4 |
| 5 | 3 | 8 | 2 | 1 | 6 | 9 | 4 | 7 |
| 3 | 9 | 5 | 1 | 7 | 8 | 4 | 2 | 6 |
| 9 | 4 | 3 | 7 | 6 | 5 | 2 | 1 | 8 |
| 8 | 5 | 6 | 4 | 2 | 7 | 3 | 9 | 1 |
| 6 | 8 | 7 | 9 | 4 | 1 | 5 | 3 | 2 |
| 4 | 2 | 9 | 6 | 8 | 3 | 1 | 7 | 5 |
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.