Puzzle Detail
Classic Mathdoku Classic 9×9 Easy — Set 100
| 1=1 | 5= | 4= | 7-9 | 8= | 6= | 10+ | ||
| 7= | 8= | 3= | 1- | 1=1 | 6= | 5= | 2=2 | 9x |
| 15+ | 6 | 2=2 | 3 | 7=7 | 5= | 8=8 | 4= | 1 |
| 2- | 5= | 6= | 11+ | 8= | 5+ | |||
| 4=4 | 54x | 8= | 1- | 63x7 | 5= | |||
| 2= | 56x | 3= | 9=9 | 1= | 6=6 | 4 | ||
| 5= | 9= | 35x | 3= | 12+ | ||||
| 8= | 12x3 | 1= | 9=9 | 11+5 | 2=2 | 2/ | 6- | 6= |
| 6 | 3/ | 7= | 1 | 8x | 4=4 | 3=3 | 9=9 | 5= |
Show solution
| 1 | 5 | 4 | 2 | 9 | 8 | 6 | 3 | 7 |
| 7 | 8 | 3 | 4 | 1 | 6 | 5 | 2 | 9 |
| 9 | 6 | 2 | 3 | 7 | 5 | 8 | 4 | 1 |
| 3 | 1 | 5 | 6 | 4 | 7 | 9 | 8 | 2 |
| 4 | 9 | 6 | 8 | 2 | 1 | 7 | 5 | 3 |
| 2 | 7 | 8 | 5 | 3 | 9 | 1 | 6 | 4 |
| 5 | 4 | 9 | 7 | 6 | 3 | 2 | 1 | 8 |
| 8 | 3 | 1 | 9 | 5 | 2 | 4 | 7 | 6 |
| 6 | 2 | 7 | 1 | 8 | 4 | 3 | 9 | 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.