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July 25, 2014

July 25, 2014

Posted by **mathemagiacian** on Thursday, August 15, 2013 at 6:19pm.

What is the sum of all sixteen numbers written in this grid?

How about a ten by ten grid?

I really hope to see the answer. Thanks! :)

- MATH -
**MathMate**, Thursday, August 15, 2013 at 7:34pmWhat did you get?

You would be well to do the 4x4.

If you have difficulties, start with a 1 by 1, then 2 by 2 and then 3 by 3 grid. You will find a pattern that you can use later.

Once done, do an n × n grid and check if the answer for n × n works for n=4.

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