Tips and tricks for dividing by quarter-deck increment.

[BlackHead]

Just finished reading "Blackjack Life" and Nathaniel mentions finding shortcuts for dividing that he picked up from a math website. The example he gave was dividing 14 by 3.25 by tripling the 14 to get 42 and adding the the decimal to get a nearly accurate 4.2! Does anyone know of any other shortcuts like this.

What if lets say the running count was again 14 but there was 3.75 decks remaining
or

RC 9 and 1.75 decks left
RC 9 and 1.25 decks left
RC 14 and 4.25 decks left

[moo321]

My shortcut is not dividing by 1/4 decks.

[mofungoo]

Don't divide - use the equivalent multiplier. It's faster for most people.

[marriedputter]

My shortcut is not dividing by 1/4 decks.

Same here. I do double the numbers though. When dividing a RC of +14 by, say, 3.5 decks remaining, I double both numbers so that I can divide by an integer instead of a fraction (it would be +28/7 in this case for a TC of +4). I never read that anywhere, it just made sense to me.

[BlackHead]

Same here. I do double the numbers though. When dividing a RC of +14 by, say, 3.5 decks remaining, I double both numbers so that I can divide by an integer instead of a fraction (it would be +28/7 in this case for a TC of +4). I never read that anywhere, it just made sense to me.

Nice one thanks.

Don't divide - use the equivalent multiplier. It's faster for most people.

can you give me some examples please?

[mofungoo]

Two decks remaining - divide RC by 2 or multiply by .5 (RC = running count)
One deck remaining - divide RC by 1 or multiply by 1
Half a deck remaining divide RC by 1/2 or multiply by 2
Etc.,etc.

[OGBasher]

For double decks I multiply RCxquarter decks remaining and then divide by 4. Obviously you just divide normally with 1 or 2 decks remaining and multiply at 1/2 deck or lower.

[BJGenius007]

Just finished reading "Blackjack Life" and Nathaniel mentions finding shortcuts for dividing that he picked up from a math website. The example he gave was dividing 14 by 3.25 by tripling the 14 to get 42 and adding the the decimal to get a nearly accurate 4.2! Does anyone know of any other shortcuts like this.

What if lets say the running count was again 14 but there was 3.75 decks remaining
or

RC 9 and 1.75 decks left
RC 9 and 1.25 decks left
RC 14 and 4.25 decks left

My deck estimation drops in the sequence: 8, 7, 6, 5, 4, 3, 2.5, 2.25, 2, 1.75, 1.5, 1.25, 1, 0.75, 0.5, 0.25. I only do quarter deck estimation after 2.5 decks in shoe game.

[Three]

Multiply by 4 and divide by the number of quarter decks remaining.
Example:
RC 9 1.75 left thats 7 quarter decks; 9*4/7 = 36/7 = 5+
RC 9 1.25 left or 5 quarter decks. 36/5 = 7+
RC 14 4.25 left or 17 quarter decks. 56/17 = 3+

[DSchles]

"RC 9 1.25 left or 5 quarter decks. 45/4 = 11+"

OOPS! What you meant to write was: 9*4/5 = 36/5 = 7+.

Don

[Three]

Thanks Don. Multitasking. I got walking a chewing gum down but trying to pay attention to the wife while I type and do math doesn't always works out.

[BlackHead]

OOPS! What you meant to write was: 9*4/5 = 36/5 = 7+.

Don

Lol...... Thanks again guys for all the tips and tricks.

[BlackHead]

Btw, I highly recommend reading the Blackjack life (thanks Nyne) it opened my eyes to the world of well organized team play. I was surprised to learn how disciplined and hardworking these playing were. Quarter-deck estimations, index by half true counts and also figuring out there optimal bet on the spot by offsetting and sometimes while also balance betting optimally with 2 players. Nathaniel mentions dividing your bankroll in 500 units (35 units for me) and offsetting the TC by one to get 1 to get the optimal bet for half-kelly i'm guessing. What if, you ignore the offset of -1 would that mean your betting .6 Kelly would that be a proper short cut.