A Slots Series is a set of four cards, each having a numbered on it. These have the same property as a normal deck of cards, that a number can be determined by a rotation of the card from the side facing you. The Slots Series comes in many different configurations. The numbers of cards can range from three to six, and you should always read the printed information in the card itself when it comes time to place your bets. Each card may have either up or down sides, depending on how the card is rotated in your playing area. Once the cards are printed out, the dealer will usually run them through a die or grooved die that counts them and shows you the total of the hands you are playing. Your cards will be on a line, where the up side of the card is normally the part that will be shown.