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'Weekly Problem 47 - 2008' printed from http://nrich.maths.org/

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In a magic square, the three numbers in each row, in each column, and in each diagonal add up to the same number. Complete this magic sqaure.

magic square

 

If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas.

 

 

This problem is taken from the UKMT Mathematical Challenges.

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