First of all to play you need at least 3 people and four key pads and math problems.To play,first a person tells the other people a math problem.Then any person on team1 can press z,space or m. Any one in team2 can press x,b or n. And for team3 a,v or l.If you press any of these you have to answer immediately. If you answer correctly you get 10 points a question for yourself or for your group. And have 15 seconds to answer another if you get it right you get 5 points. Who ever has the most points wins.