Betting numbers, also known as ODDS, are numerical values used to represent the likelihood of an event occurring. They are commonly used in gambling and sports betting, where they are used to calculate the payout for a winning bet. ODDS are usually expressed as a ratio or fraction, with the numerator representing the amount of money that will be paid out if the bet is successful, and the denominator representing the amount of money that must be wagered in order to win the bet.