Puzzle Detail
Subtraction Mathdoku Subtraction 9×9 — Set 8
| 1- | 3- | 3-5 | 1= | 3- | ||||
| 5- | 6= | 1=1 | 9= | 4= | 2- | 8= | ||
| 4= | 8= | 3= | 2= | 5- | 9= | 7= | 5= | |
| 3=3 | 4= | 7= | 3- | 5= | 9= | 1- | ||
| 9= | 1= | 8= | 7= | 6= | 3- | 5- | 2= | |
| 5= | 6= | 8- | 3- | 2= | 3=3 | |||
| 1= | 5=5 | 4- | 1- | 6= | 8= | 7= | ||
| 6= | 2= | 5= | 9= | 3= | 7= | 1= | 5- | |
| 7= | 1- | 5= | 7- | 4- | 6=6 |
Show solution
| 8 | 9 | 4 | 7 | 2 | 5 | 1 | 3 | 6 |
| 2 | 7 | 6 | 1 | 9 | 4 | 3 | 5 | 8 |
| 4 | 8 | 3 | 2 | 6 | 1 | 9 | 7 | 5 |
| 3 | 4 | 7 | 6 | 5 | 9 | 8 | 2 | 1 |
| 9 | 1 | 8 | 3 | 7 | 6 | 5 | 4 | 2 |
| 5 | 6 | 1 | 8 | 4 | 7 | 2 | 9 | 3 |
| 1 | 5 | 9 | 4 | 3 | 2 | 6 | 8 | 7 |
| 6 | 2 | 5 | 9 | 8 | 3 | 7 | 1 | 4 |
| 7 | 3 | 2 | 5 | 1 | 8 | 4 | 6 | 9 |
Solver Notes
Our 9x9 subtraction mathdoku puzzles challenge you to fill a 9x9 grid using only subtraction (−) cage targets — great for arithmetic practice and logic training.
What is a 9x9 subtraction mathdoku?
A 9x9 subtraction mathdoku is a 9x9 number grid where every cage uses subtraction (−) as its operation. Fill 1–9 in each row and column with no repeats while satisfying all cage targets.
Can I print this puzzle?
Yes — use the Print button on any puzzle page to get a clean PDF of the 9x9 subtraction mathdoku with solution.
Who are 9x9 subtraction mathdoku puzzles best for?
Advanced players and adults who want to practice subtraction in a logic-puzzle context.