Puzzle Detail
Addition Mathdoku Addition 9×9 — Set 1
| 17+9 | 11+ | 16+ | 1= | |||||
| 9= | 6+ | 4 | 3= | 6= | ||||
| 3= | 23+ | 1= | 8= | 5= | 2= | 15+ | 20+ | |
| 6= | 8= | 13+ | 8+5 | 3= | ||||
| 8= | 16+ | 3 | 1= | 7= | 9= | |||
| 12+ | 21+ | 1= | 8= | 12+ | 2= | 7= | ||
| 11+ | 9= | 1= | ||||||
| 5= | 14+ | 4= | 9= | |||||
| 11+4 | 6 | 7= | 16+ | 5= | 25+ |
Show solution
| 2 | 9 | 6 | 3 | 8 | 7 | 5 | 4 | 1 |
| 9 | 1 | 8 | 7 | 2 | 4 | 3 | 6 | 5 |
| 3 | 7 | 1 | 8 | 5 | 2 | 6 | 9 | 4 |
| 6 | 8 | 7 | 1 | 4 | 5 | 9 | 3 | 2 |
| 8 | 2 | 4 | 5 | 6 | 3 | 1 | 7 | 9 |
| 5 | 3 | 9 | 6 | 1 | 8 | 4 | 2 | 7 |
| 7 | 4 | 5 | 2 | 3 | 9 | 8 | 1 | 6 |
| 1 | 5 | 2 | 4 | 9 | 6 | 7 | 8 | 3 |
| 4 | 6 | 3 | 9 | 7 | 1 | 2 | 5 | 8 |
Solver Notes
Our 9x9 addition mathdoku puzzles challenge you to fill a 9x9 grid using only addition (+) cage targets — great for arithmetic practice and logic training.
What is a 9x9 addition mathdoku?
A 9x9 addition mathdoku is a 9x9 number grid where every cage uses addition (+) 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 addition mathdoku with solution.
Who are 9x9 addition mathdoku puzzles best for?
Advanced players and adults who want to practice addition in a logic-puzzle context.