
Summable: Number Merge Puzzle
Math Brain Teaser & Sum Game
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$1.99 Free
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About
Swipe. Merge. Hit the number.
Summable is a calm, clever math puzzle. Every level gives you a grid of numbered blocks and a goal. Swipe across a row, column or diagonal to merge blocks into their sum. And keep building until one block shows exactly the goal.
Sounds simple. It isn't for long.
HOW IT WORKS
• Merge equal numbers: 1 + 1 + 1 becomes 3
• Build chains: 1, 1, 2, 4 merges into 8 in a single swipe
• Find the star blocks: a * multiplies everything on each side of it
• New blocks fall in from the top – plan where they land
• Some levels limit your moves. Find the smartest path.
WHY YOU'LL LIKE IT
• [N] hand-made levels, from first swipe to real brain-benders
• No timers, no pressure – think as long as you want
• Restart any level instantly
• Works offline
• Light and dark mode
• Great for practicing mental math, for kids and adults alike
Can you reach 4800?
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What's New in Summable
2.0
October 22, 2026
A big cozy update! 64 brand new levels that teach you one trick at a time. Earn up to three stars on every level. Can you find the shortest solution? Undo any move, or try a level again for a better score. A fresh new look with soft colors, calm sounds and forest ambience. Lots of small fixes and improvements.
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