👉 In mathematics, a countdown is a sequence of numbers or operations being performed in a specific order. It typically involves counting down from a certain number to zero and stopping as soon as that number is reached. For example, if you are playing a game where there are 10 cards in a deck of cards, the game would be played in a countdown style. The first player to draw a card would start drawing from the top of the deck, counting down to the bottom. After each draw,