How to Play Fast Brain Math
Fast Brain Math is a rapid fire brain game designed to sharpen your mental math in seconds. Race the shrinking timer, chain streaks and climb infinite levels — all for free.
🎯 The Core Loop
- Every level has exactly 10 questions.
- You share one timer across all 10 questions of a level.
- Correct answers move you instantly to the next question.
- Wrong answers skip to the next question and reset your streak (no game over).
- The round ends only when the timer hits zero.
⏱️ Timer Crunch
The timer shrinks aggressively with each level:
Level 130s
Level 222s
Level 317s
Level 414s
Level 512s
Level 10~8s
Level 15~6s
Level 20+6s
🔥 Fire Mode (2× Score)
Get 3 correct answers in a row and Fire Mode ignites. While active, every correct answer awards double points. Miss once and it resets. Chain the whole level for the biggest payouts.
🎮 Difficulty Modes
🟢 Simple
Ages 6+. Addition and subtraction with numbers 1–20. Perfect warm-up mode and kids math game.
🟡 Hard
Teens & adults. Multiplication tables up to 12×12, clean division, double-digit addition, and percentage of numbers.
🔴 Advanced
Math geniuses. Triple-digit arithmetic, squares, cubes, BODMAS order of operations, and 2-digit multiplication.
🏆 Score, Achievements & Skins
- Base score: 10 pts per correct answer, 20 pts during Fire Mode.
- 19 achievements to unlock — milestones, streaks, perfect rounds, and more.
- 8 unlockable skins from Midnight (default) to Inferno (Level 20).
- Your progress, best scores and unlocks are saved locally. Submit your score to the global leaderboard by mode.
⌨️ Pro Tips
- Use keys 1 2 3 4 on desktop for instant answers.
- Don’t hesitate on Simple mode — build your streak before the timer bites.
- On Advanced, spot the operator order (BODMAS) first, then compute.
- Wrong answers cost time — skip mentally rather than guessing wildly.