Students shuffle the cards and place each card face down on the table. The first player then selects two cards and turns them over. That player then reads the number/calculate the value of each card and tell the group. If the cards match, they win the pair and get another turn. If the cards do not match, they return them to their face down position and the next player takes a turn. The game is over when all matches are collected. The player with the most matches wins.