Hello Mr. Obvious, long time reader first time poster. (Anyone that gets Bob and Tom will understand that one. Oh, and this is my second post but that's ok!)

I was wondering how much math people actually use while playing any given hand in NLHE. While reading the posts, and I have spent hours pouring over them, I see people analyzing hands using tons of math on things like implied odds, EV, FE, ROI, etc etc...

After playing for a year or so with play money, I have stepped up to real money and am taking the game very seriously. I devote as much time to reading these boards as I do to playing the game.

Currently I start out any hand by reading the overall table, then reading the people in the hand and my position. When a bet comes to me, and I feel I am an underdog (after the flop), I can pretty quickly figure out the pot odds vs. my outs minus any cards I think will help them. Those factors determine if I stay in the hand or not. Calling or raising then becomes more determined on my read than anything else.

Hind sight can tell me if I made the right choices or not, but in the middle of the hand, are there any other math factors anyone looks at?

This brings me to my next question. All the math in the world can be used on a hand when looking at HH and there is no pressure. Are there other odds that you know in certain situations just from memorization? For example, if I have two hearts in my hand and two hearts come up on the flop, I automatically know I have approximately a 35% chance of seeing another heart on the turn or the river. I don't do the math, I just know this. Are there any figures for any of the other numerous odds calculations that exist that people feel are important to just memorize?

Thanks so much to all of the people in this forum that lend their expertise to this forum. With your help, maybe I can convince my wife one of these days that this game is more than pure luck.