From the publisher: Make addition and subtraction 3 times as fun! Dish out the numbered playing cards, then using the familiar triangle board as a visual cue, fill in the missing spots to complete fact families. Be the first player to play all your cards, and call out “tri-FACTa"! Includes triangle game board, 100 cards (facts up to 20) and 4 trays Object of the game: Be the first player to play all your cards, and call out "tri-FACTa!"