Play Sum of 10: Merge Number Tiles Online Free

About This Game

Sum of 10 is a math merge puzzle with a refreshingly clear goal: combine number tiles whose values sum to exactly 10. It is arithmetic you can touch — scanning the board for 7+3, 6+4, 5+5 — clearing groups and passing levels while quietly practicing the mental addition school tried to teach you. Levels escalate the grid complexity, and the sum constraint makes every board a small optimization question rather than a luck-based match. Genuinely good for arithmetic and logic skills, as promised, and genuinely fun besides. Free in your browser, playable everywhere, anytime.

How to Play

Tap number tiles whose values sum to exactly 10 to clear them from the board — pairs like 7+3 or trios like 2+3+5 all count. Clear the required number of sums to finish the level; new tiles spawn as you clear. Plan sums that also free up the board's edges. Tip: the digits 1 through 9 sum-pair in fixed partners (1+9, 2+8, 3+7, 4+6) — hold the small numbers and scan for their big fixed partners.