Addition and Subtraction Challenge Cards (Ideal for teaching ages 6 and older) Splash into math with a FINTASTIC game that develops essential math skills. Master addition and subtraction facts 0-10, and greater than, less than, and equal to skills. Players solve math problems and collect the most cards to win. Ideal for school, home, and on the go.  54 Game Cards, 1 Activity Card, and 1 Answer Card. 56 two-sided cards, 3⅛” x 5¼”. Coordinates with Sea Buddies™ Collection.