make a simple betting line 2 - 2 - 1 - 1 - 2 - 2. next you need to take the number from the far right and add it to the first number on the left, the result will give you the amount of your bet, 4. if you win then you cross off both the first and last numbers in your line, your betting line now looks like this: 2 - 1 - 1 - 2 and your next bet would be for 4 pounds. however, if you failed, then you write down the amount of your previous bet (4) at the end of the betting line, so 