Math Game: Number Twins

Number Twins is Math game. One should know the simple addition to play this game. This is a very simple Mathematics variation of game Connect. In this game, one will be given a grid of balls. Each ball will contain a number on it. Your aim is to connect these balls so that the sum of numbers on these balls is 10. One more condition to connect these balls is that to reach from one ball to another connecting ball one should not take more than two turns. Faster to connect balls, more your score. 
So let's give your Mathematics addition skill a boost by playing this Number Twins game.