Puzzle Detail
Subtraction Mathdoku Subtraction 9×9 — Set 9
| 6= | 6- | 5= | 7=7 | 1= | ||||
| 3- | 9= | 6- | 7= | 4= | 2- | 3= | ||
| 6- | 3- | 6= | 2-3 | 6- | 9=9 | 2- | ||
| 2- | 9= | 1- | 1- | 6= | 1= | |||
| 2- | 5-6 | 3= | 1- | |||||
| 3= | 8= | 2= | 7- | 4=4 | 2-7 | 2- | ||
| 6= | 5= | 1- | 1= | 8= | 6- | 2= | 2- | |
| 4= | 2= | 5= | 7= | 7- | ||||
| 8= | 3- | 6= | 1= | 4- | 9= | 3= | 5= |
Show solution
| 2 | 6 | 8 | 9 | 3 | 5 | 7 | 4 | 1 |
| 5 | 9 | 2 | 7 | 4 | 1 | 8 | 6 | 3 |
| 1 | 7 | 5 | 8 | 6 | 3 | 2 | 9 | 4 |
| 7 | 3 | 9 | 4 | 5 | 8 | 6 | 1 | 2 |
| 9 | 1 | 6 | 3 | 2 | 7 | 4 | 5 | 8 |
| 3 | 8 | 1 | 2 | 9 | 4 | 5 | 7 | 6 |
| 6 | 5 | 4 | 1 | 8 | 9 | 3 | 2 | 7 |
| 4 | 2 | 3 | 5 | 7 | 6 | 1 | 8 | 9 |
| 8 | 4 | 7 | 6 | 1 | 2 | 9 | 3 | 5 |
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.