Summable: Number Merge Puzzle

Now free! Swipe matching numbers into bigger ones and hit the target sum. A calm math puzzle with no timers – just you, the numbers and one clever move at a time.

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?