Do you like number puzzle games? Get bored with regular puzzle games? Why don’t you try this new puzzle. This game gives you new feel and excitement. The objective of the game is find out the sum on the grid. You have 5 levels to choose(3*3, 4*4, 5*5, 6*6, 7*7). This game improves kids mathematical ability. Compatible with S^3 / Anna / Belle Smart Phones.