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3x3 Addition Squares

4x4 Addition Squares

Addition Square Online is a math crossword puzzle, a square containing a number of integers arranged so that the sum of the numbers is the same in each row, column. Unlike magic squares, it does not require diagonal sums to be equal. This is a maths calculation game and logical reasoning game.

## How to Play?

For example:

Sum of numbers on each line:

12+7+2 = 21

4+11+6 = 21

5+3+13 = 21

Sum of numbers on each column:

12+4+5 = 21

7+11+3 = 21

2+6+13 = 21

Start the Addition Square Online game now.