The Ace card can have a value of one or 11.
Face cards (Jack, Queen, and King) have a value of 10. Numbered cards have the value of the number on the card. The goal of Blackjack is to get 21, the best score, or less by adding up the value of the cards. To play Blackjack (other times called '21') one must have all the cards of a deck except the jokers.
