For numbered cards (2 through 10) the value of the card is equal to its rank. Face cards (Jack, Queen, and King) carry the value 10.
Step 1  Learn the Card Values\n\n The standard blackjack card counting technique uses the following values for the cards: 2, 3, 4, 5, 6  Each worth +1. 7, 8, 9  Each worth 0. 10, Jack, Queen, King, Ace  Each worth -1.