Puzzle Detail
Classic Mathdoku Classic 8×8 Easy — Set 31
| 4- | 1=1 | 2 | 14x7 | 6= | 3=3 | ||
| 7= | 4=4 | 2-8 | 6 | 3= | 2- | 5= | 7+2 |
| 4- | 5= | 7= | 1= | 8= | 28x | ||
| 1= | 2= | 8= | 5= | 4=4 | 7 | ||
| 2=2 | 30x | 12x | 6= | 6-1 | 8= | ||
| 5= | 21x | 4/ | 2 | 4= | 6= | 1= | |
| 3 | 21x | 24x | 1= | 5= | 10+8 | 9+2 | |
| 11+8 | 1= | 6 | 5= | 4= | 7 | 2/ |
Show solution
| 4 | 8 | 1 | 2 | 7 | 6 | 3 | 5 |
| 7 | 4 | 8 | 6 | 3 | 1 | 5 | 2 |
| 6 | 2 | 5 | 7 | 1 | 3 | 8 | 4 |
| 1 | 6 | 2 | 3 | 8 | 5 | 4 | 7 |
| 2 | 5 | 3 | 4 | 6 | 7 | 1 | 8 |
| 5 | 3 | 7 | 8 | 2 | 4 | 6 | 1 |
| 3 | 7 | 4 | 1 | 5 | 8 | 2 | 6 |
| 8 | 1 | 6 | 5 | 4 | 2 | 7 | 3 |
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.