FleaStiff
Joined: Oct 19, 2009
• Posts: 10963
March 29th, 2014 at 3:28:07 AM permalink

Where are some good math drills ... its about time I stopped getting from 7 plus 3 by silently saying 8, 9, 10 to myself.
Or getting 8 and 7 are 15 directly rather than thinking 8 and 8 are 16, so subtract 1 from 16 to get 15.

I was playing poker variants these past few days and it was hard for me to think of anything less than a pair of jacks as being a poker hand. Any one know of a beginning poker tutorial?
odiousgambit
Joined: Nov 9, 2009
• Posts: 7293
March 29th, 2014 at 3:42:56 AM permalink
whatever you do, don't read about how much harder this is to learn when you are older

as for cards, any type of game, hopefully just find free trainers at Wizard of Odds so you don't learn by losing money?
"Baccarat is a game whereby the croupier gathers in money with a flexible sculling oar, then rakes it home. If I could have borrowed his oar I would have stayed." .......... Mark Twain
RS
Joined: Feb 11, 2014
• Posts: 5342
March 29th, 2014 at 4:44:32 AM permalink
Quote: FleaStiff

Where are some good math drills ... its about time I stopped getting from 7 plus 3 by silently saying 8, 9, 10 to myself.
Or getting 8 and 7 are 15 directly rather than thinking 8 and 8 are 16, so subtract 1 from 16 to get 15.

I was playing poker variants these past few days and it was hard for me to think of anything less than a pair of jacks as being a poker hand. Any one know of a beginning poker tutorial?

I don't think you're necessarily looking for math drills, but the ability to see and recognize what the value of 2 cards is. When playing blackjack, you don't look at 8,7 and think "8 + 7 is 15", you just see it and know it's 15. Just take a deck of cards and flip over 2 of them and add them up (since it appears you can't see 2 numbers and know what they add up to without actually thinking about it..). After a while you should be able to see 2 cards and know what their value is without having to think. Then you can practice with 3+ cards. You'll quickly learn combinations of cards and what they add up to. For example, 858, 939, 678, and 777 are 21. 848, 929, 767 are 20. T27, T36, T45, etc. are 19. Those are the easier ones. Then you learn 957, 966, 489, etc are 21. And it goes on. Sooner or later you'll recognize 4524 is 15. Other values help as well, knowing at which point your cards are greater than 12 or greater/less than 16. If you know your cards are less than 16 and the dealer has a 7,8,9,T,A, you're going to be hitting (unless you're card counting, in which case you aren't necessarily going to auto-hit...but if you are counting, you should damn well be able to know what your cards add up to pretty quickly without having to actually add them up).
"should of played 'Go Fish' today ya peasant" -typoontrav
dwheatley
Joined: Nov 16, 2009
• Posts: 1246
March 29th, 2014 at 5:37:54 AM permalink
Here's one to start. Make a 9x9 grid on a sheet of paper. Leave the upper left blank. In the top row, put the numbers 2-9 in a random order. In the left column, put some random 2 (and 3 if you want harder) digit numbers. The goal is to fill in the times table as fast as possible.

Time yourself, then do it again with different numbers. Check for accuracy with a calculator afterwards.

The trick is you get to pick the order you fill it in. As you do this more often, you will teach yourself techniques to do it faster, like doing the 4 column by doubling the 2 column.

I have more drills if you want them. My highschool math teachers were strange.
Wisdom is the quality that keeps you out of situations where you would otherwise need it
arcticfun
Joined: Oct 2, 2013
• Posts: 175
March 29th, 2014 at 5:49:17 AM permalink
I agree with RS. At first, you are performing the addition operation. Eventually, you learn the combos from the look of the cards and don't need to mathematically go through the addition -- you just know, based on having seen the combinations of cards so many times, what your hand total is. In computer speak, it's like performing a function O(N) (it takes as many cycles as there are operations, and "addition" is an operation) versus using a hash table, which is O(1) -- a lookup table where the amount of time it takes to obtain the information is constant.
teliot
Joined: Oct 19, 2009
• Posts: 1811
March 29th, 2014 at 6:18:51 AM permalink
Quote: FleaStiff

Where are some good math drills ... its about time I stopped getting from 7 plus 3 by silently saying 8, 9, 10 to myself.
Or getting 8 and 7 are 15 directly rather than thinking 8 and 8 are 16, so subtract 1 from 16 to get 15.

http://arithmetic.zetamac.com/

Set it for addition only and set the range of numbers from 1 to 11.
FleaStiff
Joined: Oct 19, 2009
• Posts: 10963
March 29th, 2014 at 7:14:00 AM permalink
Thanks y'all. I'll be working on my skills.

I actually enjoyed the poker more than blackjack but at first I didn't even fathom what was happening at the poker variation tables other than all my chips were marching towards the dealer.
mickeycrimm
Joined: Jul 13, 2013
• Posts: 2299
March 29th, 2014 at 7:55:31 AM permalink
I did a lot of math drills to learn poker math. I started with Scarne and learning to break down a 52 card deck figuring out the total combinations, then the combinations that made a royal flush, straight flush, four of a kind, etc., all the way down to the no pair hands. It's basically just learning to write the equations.

Then I put myself through more drills. Nowadays, if you have video poker software you can punch a hand into the "create a hand" feature and get the number of combinations on the draw that improve the hand. So you get the answer first then see if you can write the equation and get the same answer. I would start with the easy ones first.

In 9/6 Jacks you are dealt AAA23. What are the combinations on the draw that improve the hand? You can improve to either a full house or four of a kind.

The 4K is pretty easy. There are 47 remaining cards. There is one ace left in the deck so 1 times the 46 remaining cards = 46.

The full house combinations are a little harder. There are 12 live ranks left in the deck. 10 of those ranks have all four cards left in them, 2 of those ranks only have 3 cards in them.

4X3/2X1 = 6 This is the number of combinations in a full rank that make a pair.

3X2/2X1 = 3 This is the number of combinations that make a pair in a rank that only has 3 cards left. So:

10 live ranks times 6 = 60
2 ranks with three cards left in them times 3 = 6

There are 66 combinations that make a full house. Then you compare the answers you came up with to the chart in the "create a hand" feature that shows how many combinations make what.

Start with the easy ones then move on to the harder ones.
FleaStiff
Joined: Oct 19, 2009
• Posts: 10963
March 31st, 2014 at 5:32:50 PM permalink
Quote: teliot

http://arithmetic.zetamac.com/
Set it for addition only and set the range of numbers from 1 to 11.

Ah, how the fates conspire against me? Here I am doing math drills and I find I have to first learn the keypad properly. Haven't used it in decades.

And then.... it seems I must have touched some doorknob or shopping cart somewhere and I'm under the weather but big time! Gobbling Vitamin C capsules as if they were candy. Relying on Chinese mustard and Hard Cider to kill off whatever virus it might be.

And here I had dreams of constant math drills!
beachbumbabs
Joined: May 21, 2013
• Posts: 9045
March 31st, 2014 at 7:10:26 PM permalink
Quote: FleaStiff

Ah, how the fates conspire against me? Here I am doing math drills and I find I have to first learn the keypad properly. Haven't used it in decades.

And then.... it seems I must have touched some doorknob or shopping cart somewhere and I'm under the weather but big time! Gobbling Vitamin C capsules as if they were candy. Relying on Chinese mustard and Hard Cider to kill off whatever virus it might be.

And here I had dreams of constant math drills!

Sorry to hear you're not well, Flea...take care, buddy! The hard cider should help...hic.
"If the house lost every hand, they wouldn't deal the game."