The game that makes numbers fun! ADDIT is played on a square board with 2 pairs of interconnecting rows of numbers. The object of the game is to close all the numbers on one side of the board. The first player to do so is the winner. The game may be played at three skill levels. Start at level 1 and progress to the challenges of levels 2 and 3! Age 8+ Years. 2 - 4 Players