3×3 Classic Sum Puzzle Game
The classic magic-square puzzle — every row must sum to 15.
Activity summary
SumGrids 3x3 mode. 3×3 grid, digits 1-9, row target 15. Difficulty: medium. Swap-any-two-tiles mechanic.
Rules
Swap any two tiles. All 3 rows must sum to 15.
Who it is for
Recommended grades: 1st grade, 2nd grade, 3rd grade.
Play free
Embedded game above — track wins in your browser.
FAQ
Is SumGrids free?
Yes, completely free in the browser.
Do rows or columns count?
Rows must hit the target sum.
Mobile friendly?
Yes — touch to swap tiles or type answers.