The best math study group ever teaches you about integers; positive whole numbers, like 1, 2, and 30, and their opposites, -1, -2, -30, and 0. You can use integers to borrow money from your friends so you can buy an awesome denim jacket, or even make critical decisions like choosing between Charlieissocoollike and Tobuscus - a hard choice. In fact, you even used integers to choose this video. Where? What? Huh! Click play to see.