Not only will this give you a deeper understanding of the odds but hopefully motivate you to refresh or improve your math skills.īefore going on you must have an understanding of the probability of throwing each total in one roll. Please stay a while and work through some of the bets yourself. To avoid multiplying by -1 for every bet I shall speak of everything in term's of the player's edge, which you can expect to be negative since the house ultimately has the edge on all bets except the free odds. Outside of this appendix I usually speak about the house edge, which is just the product of the player's edge and -1. This is where I derive the player's edge for all the major bets in craps. On this page How the House Edge for Each Bet is Derived