Puzzles game
Addition Brain Teaser is a math puzzle game about combining every number on the board together. The twist is that a drag only works when the numbers are equal, or when their sum already appears on the board, so each move needs a quick mental check.
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Official listing
A challenging math puzzle game where all you have to do is add all of the numbers on the board together. But there is a catch as you can only add equal numbers together or numbers whose sum equals a number already on the board. For example, you can add 3 and 3 together because they are equal. If 7 is on the board you can combine 5 and 2 together. Although 5 and 2 aren't equal their sum is 7 which is on the board.
From the game listing
Use mouse or touch to play this game Just click touch a number and drag it to other numbers you want to add together
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Addition Brain Teaser is a math puzzle game about combining every number on the board together. The twist is that a drag only works when the numbers are equal, or when their sum already appears on the board, so each move needs a quick mental check.
Addition Brain Teaser turns simple arithmetic into a constraint-based puzzle. The board shows numbers, and the goal is to add all of them together, but you cannot merge any pair you like. Equal numbers can be combined, such as 3 and 3. Unequal numbers are allowed only when their sum equals a number already on the board, such as combining 5 and 2 while 7 is present. That rule makes every drag a small reasoning problem instead of a free matching exercise.
Your objective is to add all of the numbers on the board together while following the pairing rule. Look for equal values first, then check whether an unequal pair totals a number that is already visible. Each valid drag should move the board closer to one combined result.
1. Scan the board and note every visible number before choosing a pair.
2. Find two equal numbers, or find two numbers whose sum equals another number already on the board.
3. Use mouse or touch: click or touch a number and drag it to the other number you want to add.
4. If the pair is not equal, confirm its total matches a visible board number before dragging.
5. Keep combining valid pairs until you have added all of the numbers on the board together.
Mouse: Click a number and drag it to other numbers you want to add together
Touch: Touch a number and drag it to other numbers you want to add together
The challenge is less about speed and more about spotting legal relationships. A pair can be obvious when values match, but the interesting moves come from checking totals against the current board. The description’s 5 + 2 into 7 example shows the core habit: calculate the pair, then verify that the result is already present before you drag.
As a Puzzles title with Educational, Math, Puzzle, School, HTML5, and Mobile tags, Addition Brain Teaser fits players who want short arithmetic reasoning rather than action. Its drag interaction and number-board rule make it suitable for practicing addition while still feeling like a logic constraint game.
This page naturally targets phrases like addition brain teaser and addition brain teaser game because the title and play pattern are explicitly about adding numbers under a rule. It can also fit the broader puzzle game online context through its Puzzles category, HTML5 tag, and simple mouse-or-touch board interaction.
What is the goal in Addition Brain Teaser? The goal is to add all of the numbers on the board together. You do this by dragging one number onto another, but only pairs that satisfy the game’s equal-or-sum rule can be combined.
How do you combine numbers? Use mouse or touch. Click or touch a number, drag it to the other number you want to add, and release only when the pair is equal or its sum matches a number already on the board.
Can any two numbers be added? No. Equal numbers can be added, but unequal numbers need their sum to equal a number already on the board, such as 5 and 2 when 7 is visible.
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