In the past, these were printed on the balls, so bingo types were defined as 75 balls, 80 balls, and 90 balls. They correspond to the numbers that are involved in the drawing. The types of games you play are determined by the numbers that are included in your tickets. This is the goal of the game – to be the first to cross out all the numbers. When the dealer calls out a number, or you see it on the screen, you cross it off your ticket. Regardless of whether you play offline or online, you will use a card with a certain number of numbers. Bingo owes its popularity to simple rules and algorithms.