This version of the number puzzle game Flip Sums can be played on your Web Browser. The maths game has levels that range from 1 to 35. Level 1 involves a simple equation involving 3 tiles with numbers on both sides. Using the flip button, a player can view the numbers on the other side of the tiles and choose and drag down into the equation the relevant numbers to correctly complete the task. The level of difficulty increases at each level and gives the player that extra challenge at each step to correctly complete the equations as quickly as possible. Points are awarded depending upon the speed taken to correctly complete the equations in this maths game. Players are given 5 Free Games to know and get use to the idea of the maths game before purchasing and having access to all 35 levels. The top ten scores are listed in the Leaderboard..