Card values are the key to building a solid hand. They help you decide whether you need to draw another card, split your hand, keep your current hand or withdraw from the round. Cards ranging from two to 10 are taken at face value, which implies that the number of the card indicates the value of that card. The jack, queen and king, otherwise referred to as face cards, are 10-value cards. The ace is the one card that has two different values, as it can either have a value of one or a value of 11, depending on the state of your hand.