# math

posted by piamonte

there are six cubes ho can i arrange the numbers 1-9 in the boxes.their sums vertically,horizontally,and diagonally must be 15.
Note:each digit should be used only once.

1. MathMate

Not sure how you put 9 numbers in six cubes.

If you put 9 numbers (1-9) in an array of 3x3 squares such that each row, column or diagonal adds up to 15, it is called a magic square.

There is only one distinct 3x3 magic square, meaning that all other variations can be obtained by rotation or reflexion of the others.

Here is one version:

8 1 6
3 5 7
4 9 2

If you want to know how to find the position of the numbers of a 3x3 magic square, (or a 5x5...), post a reply to that effect.

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