Puzzle Detail
Classic Mathdoku Classic 9×9 Easy — Set 89
| 2= | 36x | 2- | 3 | 8= | 13+ | 30x | ||
| 9/1 | 56x8 | 4/ | 6x | 5 | ||||
| 4- | 7 | 1-3 | 28x4 | 5= | 6= | 8-9 | ||
| 3= | 9= | 1= | 6=6 | 6-8 | 5=5 | 7= | ||
| 42x | 9= | 5=5 | 7=7 | 2= | 4= | 7- | 3= | |
| 4=4 | 6=6 | 2- | 1 | 8- | 2= | 8= | ||
| 3= | 6= | 2= | 8= | 9= | 2- | 1= | 4= | |
| 3-5 | 1= | 7 | 42x6 | 8=8 | 9= | 4= | 1- | |
| 3- | 3=3 | 1=1 | 6= | 7=7 | 36x9 |
Show solution
| 9 | 2 | 1 | 4 | 5 | 3 | 8 | 7 | 6 |
| 1 | 8 | 4 | 9 | 7 | 2 | 3 | 6 | 5 |
| 8 | 7 | 3 | 2 | 4 | 5 | 6 | 9 | 1 |
| 4 | 3 | 9 | 1 | 6 | 8 | 2 | 5 | 7 |
| 6 | 9 | 5 | 7 | 2 | 4 | 1 | 8 | 3 |
| 7 | 4 | 6 | 5 | 3 | 1 | 9 | 2 | 8 |
| 3 | 6 | 2 | 8 | 9 | 7 | 5 | 1 | 4 |
| 5 | 1 | 7 | 6 | 8 | 9 | 4 | 3 | 2 |
| 2 | 5 | 8 | 3 | 1 | 6 | 7 | 4 | 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.