The Sum Trick and Magic Square

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Magic Square Tutorial
What is a Magic Square?
A Magic Square is an arrangement of numbers in a square grid, where the numbers in each row, and in each column, and the numbers in the diagonals, all add up to the same number.

Amazing mathematical magic square trick
In the magic square trick, an audience names any two digit number between 22 and 99 and after you fill in the 16 boxes there will be 28 possible combinations where the boxes will add up to the given number.

The trick to drawing the magic square is to realize that the numbers in a 4 by 4 magic square are always fixed as shown. (Look at the following video to see how to remember the numbers and their places in the square). Only the four numbers A, B, C, D are dependent on the number given by the audience.

Math Magic Tricks
The Sum Trick combines math and magic. The result is sure to amaze.

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