How to Play
Shuffle the cards. Give each player 32 cards. Each player places their cards face down in front of them. At the same time, each player places a card, face up, side by side. The first player to spot the card with the incorrect sum, slaps the card. The player then keeps this card. If each player plays a card with a correct sum, then they discard them and play two more cards. When all the cards have been played, players count their cards. The player with the most cards wins.