In blackjack, also known as 21, players try to draw a hand of cards that is closer in value to 21 than the dealer’s hand is without going over. To score a hand of blackjack, you’ll need to know the values of the cards.
Scoring number cards is simple — each card is worth as many points as the number of pips on it. A two is worth two points, a three is worth three points, and so on. The only exception to this rule is the ace. An ace can be worth either one point or eleven; the player gets to choose which. For instance, a player who had an ace and a six might choose to draw again, hoping for a four or lower; if he drew a five or higher he could treat the ace as worth one point in order to avoid exceeding 21 and going bust.
Jacks, queens and kings are all worth ten points. If a player is lucky enough to draw a face card and an ace on her first draw, she has a natural or blackjack. In casinos, this usually means that she automatically wins half again the amount she originally bet.