The King, Queen, and Jack cards are each valued at 10 points and the Ace can be used as 1 point or as 11 points.
The number cards which go from 2 to 9 are worth the number of points their card number is, such as a 9 will be worth 9 points and a 6 will be worth 6 points.
The game of blackjack is played with a standard card deck and each one of the cards has a point value to it.