Puzzle Detail
Classic Mathdoku Classic 9×9 Easy — Set 4
| 9= | 6 | 13+7 | 5= | 8=8 | 4= | 3= | 1= | 2= |
| 4-7 | 1- | 1= | 8+ | 2 | 4= | 4- | 9= | |
| 8= | 3= | 2= | 35x | 1= | ||||
| 3=3 | 45x5 | 6+ | 1-8 | 1=1 | 9= | 6=6 | ||
| 6 | 1- | 1- | 4 | 9=9 | 1= | 5=5 | 2 | 4/ |
| 5= | 4= | 1= | 8=8 | 3/ | 4- | 7= | ||
| 2= | 8= | 9=9 | 7 | 6-1 | 3= | 1- | 4= | |
| 4/4 | 2= | 14+ | 6=6 | 8= | 21x | |||
| 2x1 | 8= | 10+ | 4 | 7= | 9= | 2-3 |
Show solution
| 9 | 6 | 7 | 5 | 8 | 4 | 3 | 1 | 2 |
| 7 | 3 | 5 | 1 | 6 | 2 | 4 | 8 | 9 |
| 8 | 9 | 6 | 3 | 2 | 5 | 7 | 4 | 1 |
| 3 | 5 | 4 | 2 | 7 | 8 | 1 | 9 | 6 |
| 6 | 7 | 3 | 4 | 9 | 1 | 5 | 2 | 8 |
| 5 | 4 | 1 | 8 | 3 | 9 | 2 | 6 | 7 |
| 2 | 8 | 9 | 7 | 1 | 3 | 6 | 5 | 4 |
| 4 | 1 | 2 | 9 | 5 | 6 | 8 | 7 | 3 |
| 1 | 2 | 8 | 6 | 4 | 7 | 9 | 3 | 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.