Sum of N

Sum of N is a brain-bending puzzle that blends arithmetic with grid-based strategy. The goal is simple: slide numbered tiles across a board to merge them into a single value that matches the target sum shown at the top. But each move shifts every tile in a row or column, so planning ahead is essential. As you progress, the target sums and grid sizes vary, creating fresh challenges that test both your math fluency and spatial reasoning. With its clean interface and escalating difficulty, Sum of N offers a satisfying mental workout for anyone who enjoys numbers.

WaffleMath

Sum of N

Common Core State Standards

Every game supports specific Common Core standards. Browse the full standards library.

MP3Argue with math MP1Make sense of problems MP7Use structure MP4Model with mathematics MP2Reason abstractly 1.G.A.1Shape attributes K.G.A.1Position words 2.G.A.1Draw shapes with attributes

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3rd Grade · 4th Grade · 5th Grade

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What is Sum of N

Slide, merge, and match. Sum of N challenges you to make the numbers add up in just the right way.

How to Play

Tap or swipe to move the tiles in any direction, combining equal numbers to create larger ones. Aim to form a tile that equals the target sum before you run out of moves.

Tips for Playing

Plan several moves ahead to avoid getting stuck.
Keep larger tiles in a corner to maintain control.
Combine smaller tiles early to open up the board.
Watch the target sum and aim to create it from a pair of equal values.
If the board is full, focus on clearing a row to create space.

Frequently Asked Questions

What is the main objective in Sum of N?

The goal is to merge numbered tiles so that you form a tile matching the target sum given at the top of the board. Once you achieve that tile, you win the level.

How do the controls work?

You can swipe or use arrow keys to move all tiles in that direction. Tiles with the same number combine into one tile with the sum of their values.

What happens when I run out of moves?

If the board fills up and you can no longer move tiles in any direction, the game ends. You can restart the level to try again.

Is there a limit on the target sum?

The target sum changes with each level and depends on the tile values present. As you progress, the target sum can increase, challenging your ability to plan merges.

Are there any special tiles or power-ups?

No, Sum of N keeps gameplay pure and simple. You rely entirely on your merging skills and strategic planning to reach the target.