Puzzle Detail
Addition Mathdoku Addition 8×8 — Set 9
| 6= | 3= | 22+ | 1= | ||||
| 3 | 14+ | 7+ | 6+ | ||||
| 10+ | 16+ | 1 | 4=4 | ||||
| 12+ | 3 | 6= | 27+ | ||||
| 1= | 5= | 21+ | 4+ | 6= | 7= | ||
| 7= | 10+ | 18+ | 8 | ||||
| 3+ | 5= | 13+ | 17+ | 11+ | |||
| 10+ | 1= | 6= | 9+ |
Show solution
| 6 | 4 | 3 | 8 | 2 | 7 | 5 | 1 |
| 3 | 7 | 6 | 1 | 5 | 4 | 2 | 8 |
| 5 | 8 | 2 | 3 | 7 | 1 | 4 | 6 |
| 4 | 3 | 7 | 2 | 1 | 6 | 8 | 5 |
| 1 | 5 | 8 | 4 | 3 | 2 | 6 | 7 |
| 7 | 6 | 4 | 5 | 8 | 3 | 1 | 2 |
| 2 | 1 | 5 | 6 | 4 | 8 | 7 | 3 |
| 8 | 2 | 1 | 7 | 6 | 5 | 3 | 4 |
Solver Notes
Our 8x8 addition mathdoku puzzles challenge you to fill a 8x8 grid using only addition (+) cage targets — great for arithmetic practice and logic training.
What is a 8x8 addition mathdoku?
A 8x8 addition mathdoku is a 8x8 number grid where every cage uses addition (+) as its operation. Fill 1–8 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 8x8 addition mathdoku with solution.
Who are 8x8 addition mathdoku puzzles best for?
Advanced players and adults who want to practice addition in a logic-puzzle context.