Brain Buster: Multiplayer Math Puzzle Game — a speed math duel
A problem appears on screen with four answer choices. You have 10 seconds to respond. The first player to tap the correct answer gets a point, and their character hits the opponent in the ring. If you get it wrong, your rival gets a chance to steal the point. If nobody answers within 10 seconds, the round ends in a draw. There are 14 questions in a match, and the winner is the player with the most points.
The problems include addition, subtraction, multiplication, and division. The tasks are simple enough to solve in your head, and the real challenge is beating your opponent to it. You can play against a bot or online against a real person. The bot adapts to your skill: at first it answers slowly and makes mistakes, then it gets faster and more accurate. If you want to do some mental math without an opponent, try Mathematical Crossword.