Modes

Arcade

3 lives, a combo multiplier for consecutive correct answers, and difficulty that rises every 5 correct answers.

Requirements

A free account opens the course, Arcade, Survival, Time Attack, duels, and leaderboards.

Duel
In Duel you create a room and send the code to a friend, join a room by code, or let the app find an opponent.
Practice
Pick the operations (+ − × ÷) and the difficulty: Easy, Medium, Hard, Expert, or Random. No pressure.
Swipe
A timer on every question, a swipe to get the next one. Difficulty is matched to your skill level.
Survival
Your health bar keeps draining; 5 types of power-ups help you last longer.
Time Attack
Score as much as you can before the clock runs out. Fast answers multiply your points.

Start without an account: Practice and Swipe work right away.