The blackjack betting system is commonly known as 1- 3 – 2 -6 blackjack betting system and these 1, 3, 2, 6 numbers are the units of the game. This system is based on the pattern of 1 unit, then 3 units then 2 units then 6 units. The units of this system are based on the Paroli Betting system and by depending on this system you can is win 4 times in a day. Besides this Paroli Betting system there is other system of blackjack betting. Those systems are Parlay Betting System, Martingale Betting system, Labouchere betting System etc. According to blackjack betting system this system has some positive progress that means you can win more than any other betting system. It also means that you can increase the betting amount when you win the bet. Actually these units are points of the bet. Suppose you start with $5 money that means your 1 unit is equal to $5 of money. Then you can multiply the bet of the money in 3, 2, and 6 units. The fourth stage of the unit is 6 units. If you start with $5 and win the first stage another $5 is added with your $10 money.