All the numbered cards have a value equal to their face value and the high cards from ten through King all have a value of ten. The Ace or Dues has a player option to carry either a value of one or eleven, whichever is closed the total of twenty-one.
Successive betting not so much an occurrence with blackjack, since you only face the dealer in attempting to win the bet.
Once all players at the table has complete their play the dealer plays his own hand, and thus also aim as close to a value to twenty-one as possible. Depending upon the sg online casino you are playing in or even where in the world you are, will determine what rules applies, since as with Poker, Blackjack has a family of rule sets for variations in the game and strategies.
Each player, during their game turn, has the options to either Hit, Stand, Fold, and depending what initial two cards are dealt can make other plays depending on betting options like Double down and splitting your hand if dealt a pair of the identical value cards.
In some casinos, the dealer may also have some restrictions in play, for example, if dealing themselves a value of seventeen, they must stand on seventeen, and compare the hand rankings to see who has won the bet. Other restrictions could include maximum bet allowed, minimum bet allowed and is still to this day one of the preferred Casino games with its unique combination of skill and luck.