Puzzle Detail
Addition Mathdoku Addition 8×8 — Set 3
| 4= | 8= | 1= | 5=5 | 5+ | |||
| 14+ | 21+ | 21+ | |||||
| 23+ | 2= | 18+ | |||||
| 11+ | 4= | 6= | |||||
| 5+ | 15+ | 6 | |||||
| 2= | 10+ | 18+ | 11+ | 18+ | |||
| 6= | 1 | 18+ | |||||
| 24+5 | 2=2 | 6= | 3= | 7+ |
Show solution
| 4 | 8 | 1 | 5 | 6 | 3 | 2 | 7 |
| 6 | 1 | 4 | 3 | 8 | 7 | 5 | 2 |
| 1 | 6 | 8 | 2 | 4 | 5 | 7 | 3 |
| 7 | 5 | 3 | 1 | 2 | 4 | 8 | 6 |
| 3 | 2 | 5 | 8 | 7 | 1 | 6 | 4 |
| 2 | 3 | 7 | 4 | 5 | 6 | 1 | 8 |
| 8 | 4 | 6 | 7 | 1 | 2 | 3 | 5 |
| 5 | 7 | 2 | 6 | 3 | 8 | 4 | 1 |
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.