3rd Grade 3×3 Classic Sum Puzzle
3rd Grade students can play the 3×3 Classic SumGrids puzzle on this page — swap tiles until each row totals 15. No download required.
Activity summary
SumGrids 3rd Grade 3×3 Classic page. Game type: tile-swap row-sum puzzle. Grid: 3×3. Target row sum: 15. Numbers used: 1–9. Recommended for 3rd Grade. Skill: addition, planning, number sense. Free, browser-based, no login.
Why 3×3 Classic fits 3rd Grade
The classic magic-square puzzle — every row must sum to 15. 3rd grade introduces multiplication tables 0–12 alongside continued add/sub fluency.
How to play
Tap two tiles to swap them. Row totals appear beside the grid. When every row equals 15, you win and can start a new puzzle.
Also try grade practice
3rd Grade students can drill addition, subtraction, multiplication on our worksheet-style grids — fill in answers like "3 + 4 = ___".
FAQ
Is this 3×3 Classic puzzle free?
Yes. Play free in your browser with wins tracked locally.
What is the row target?
Every row must sum to 15.
Is it right for 3rd Grade?
This mode is listed among recommended grids for 3rd Grade on SumGrids.