Puzzle Detail
Classic Mathdoku Classic 9×9 Easy — Set 73
| 1- | 72x | 2= | 3= | 4- | 5 | |||
| 4- | 8x | 7= | 4=4 | 9= | 6= | 8= | ||
| 2=2 | 2-3 | 1- | 7 | 24x | 4=4 | 6=6 | 12+ | |
| 7= | 2=2 | 5= | 1- | 8= | 9x1 | |||
| 4- | 6= | 9= | 8+3 | 5 | 1- | 7 | ||
| 12+ | 2- | 3= | 14x | 2- | 11+4 | |||
| 3 | 17+8 | 9= | 1= | 3+ | 4= | 5= | 7 | |
| 1= | 6x | 5= | 6= | 7=7 | 4= | 48x | ||
| 4=4 | 5=5 | 42x6 | 8=8 | 1=1 | 9=9 | 3= | 2=2 |
Show solution
| 6 | 7 | 4 | 8 | 9 | 2 | 3 | 1 | 5 |
| 5 | 1 | 2 | 7 | 4 | 9 | 6 | 8 | 3 |
| 2 | 3 | 1 | 5 | 7 | 8 | 4 | 6 | 9 |
| 7 | 2 | 5 | 4 | 6 | 3 | 8 | 9 | 1 |
| 8 | 4 | 6 | 9 | 3 | 5 | 1 | 2 | 7 |
| 9 | 6 | 8 | 3 | 1 | 7 | 2 | 5 | 4 |
| 3 | 8 | 9 | 1 | 2 | 4 | 5 | 7 | 6 |
| 1 | 9 | 3 | 2 | 5 | 6 | 7 | 4 | 8 |
| 4 | 5 | 7 | 6 | 8 | 1 | 9 | 3 | 2 |
Solver Notes
5
4
2
3
7
4
6
2
1
3
5
7
4
3
8
7
7
4
5
6
8
1
9
2
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.