Two sets of each 24 pieces, feature addition and Subtraction respectively. The two sets will be generally be used seperatly, each giving 36 selected examples and their answers, but they can be combined to make a much longer and more complicated game. The game may be played by 2, 3 or 4 players or as a matching activity by a child working alone. The shapes are placed face down on the playing surface and players select an equal number at random. Players take turns at playing the first piece to start the game and the following players, in turn, position any connecting piece matching the problem to answer or answer to the problem. Aplayer unable to make a match misses tat turn and the winner is the first to match all his pieces correctly.

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