Koomi is a fun learning game to teach children basic math skills by trying to reach the number -10 or 10 using addition, subtraction or special cards. On a players turn, they must play cards on top of the last played card and reach +10 or -10, or draw one card from the top of the stack. The player may play at most one of the special cards. Special cards can change the start number, change the sign of the card from + to - or reverse, let a player get rid of a card, or make all players move one space in a clockwise direction. First player to get rid of all cards wins the game.