Are you one of those players who base all your decisions at the poker table on mathematical calculations? Well you shouldn’t. Math isn’t as important as one might believe when it comes to poker, or to use the words of “The Mad Genius” – Mike Caro: “In poker, math is meaningless and psychology is paramount. There, I finally said it … and I’m glad. Each time I got close to uttering those words, I lost courage and choked back the sounds. Out came silence, only silence. What made me afraid to speak the truth? Oh, I guess it was mainly a couple poker people to whom mathematics is sacred. If you dare define the real power of psychology in poker or point out the limited role of mathematics in the heat of poker combat, they lash out publicly, insanely, desperately. They hate to hear it.”

Off course you need to know the basic math to become a good poker player, but to become truly great takes a lot of practice and a deep understanding of your opponents.
Read the whole Mike Caro article here