As a new player, proposition bets at craps will definitely catch your attention, as their payouts are as high as 30:1. You can call these bets proposition or center bets. Either way, this approach aims to predict a specific outcome of a roll, such as hardways (doubles). Furthermore, proposition bets in craps can be single-roll or multi-roll bets. Single-roll prop bets tend to have a higher payout (30:1) than multi-roll bets (7:1).