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- #1

#### janvianish

##### New member

- Jun 26, 2012

- 3

In a square 3 x 3 using the numbers 1 to 9 once only put the numbers so that:

the numbers on the top row minus the numbers in the 2nd row = the numbers on the 3rd row.

trying this for about 4 hrs and am always 1 number out.