Sum Nums is a puzzle game which involves filling in the blank spaces so that the sum of all the numbers equals the number in the centre of the grid.Ignoring the number in the centre of the grid each horizontal row should sum to the number on the right hand side of each puzzle.Also ignoring the number in the centre of the grid each vertical row should sum to the numbers at the bottom of each puzzle.

http://itunes.apple.com/us/app/sum-nums ... 47122?mt=8