How fast can you count?

NumbeRush puts your arithmetic to the ultimate speed test. A random equation appears — you have limited time to answer as many as you can. No multiple choice. No hints. Just you, a numpad, and pure mental speed.

How it works
The game throws addition, subtraction, multiplication, and division problems at you one after another. Type the answer and hit Enter. Get it right — the next one loads instantly. Miss — it slides away and a new one takes its place. The clock never stops. Your score is the number of correct answers when time runs out.

It sounds simple. It isn't.

Climb the leaderboard
Every week the leaderboard resets, giving everyone a fresh shot at the top spot. Enter your display name once, and every qualifying score you set is automatically submitted. See where you rank against players around the world.

Track your personal best
Your all-time high score is saved locally, so you always know the number you're chasing. A confetti burst fires whenever you break your record.

3 free plays every day
NumbeRush gives you 3 plays per day at no cost. Run out? Come back tomorrow for a full refresh. No subscription required to enjoy the game.

Built for focus
• Clean, distraction-free interface
• Portrait-only layout — comfortable one-handed play
• Dark mode for late-night sessions
• Optional sound effects and haptic feedback
• No ads interrupting your game

The more you play, the faster you get
Mental arithmetic is a skill. NumbeRush is the drill. Whether you're sharpening your mind before an exam, keeping your brain sharp, or just trying to beat a friend's score — a quick round of NumbeRush fits anywhere.

Download free. Play instantly. Beat your best.