These exciting games provide a unique approach to reinforcing math. Each set offers four different game boards that reinforce a specific skill. After playing all four games, children will have practiced a whole skill area. Includes complete materials for four games, four colorful 9.5'' x 17.5'' game boards, playing cards for each game, game tokens, and directions. For ages 5 and up. Subtraction is easy to learn when solid lessons are combined with great gaming fun.