Brain Battle is a mental math game for fast arithmetic, brain training, and live multiplayer. Train addition, subtraction, multiplication, division, percentages, fractions, decimals, and BODMAS. Sprint for the best time, hold a streak in Endless, last three lives in Survival, or join a two-minute Quick Match.

Questions stay large and clear, with four answers. Easy is free, along with addition, subtraction, percentages, and fractions. A wider mix and harder problems unlock when you want them.

HOW YOU PLAY

Pick a mode, a topic, and a difficulty. That setup is saved separately for Practice, Sprint, Endless, and Survival.

PRACTICE
No timer and no saved score. Warm up on any unlocked topic until the method feels automatic.

SPRINT
Answer 20 questions as fast as you can. Your record is your time, and a faster time ranks higher. A run with no wrong answers is a perfect Sprint.

ENDLESS
One wrong answer ends the run. Your record is your longest streak. Each question has a time limit: 30 seconds on Easy, 60 on Medium, 90 on Hard, and 120 on Expert. A timeout counts as a wrong answer.

SURVIVAL
You have three lives. A wrong answer or a timeout costs one. Correct answers score points, with a bonus when you answer quickly.

TOPICS

Basic arithmetic
• Addition
• Subtraction, without negative answers
• Multiplication and times tables
• Division with exact answers
• Mixed: all four basic operations in one run

Advanced math
• Percentages
• Fractions
• Decimals
• BODMAS, the order of operations
• Mixed Advanced: all four advanced topics in one run

A custom mix can be played, but it is not stored as a best score. Personal bests are kept for each named topic, in each mode and difficulty. Google Play rankings use full Mixed runs and full Mixed Advanced runs.

DIFFICULTY

Easy, Medium, Hard, and Expert change the problem itself, not only its length. Easy is free. Medium is part of Partial. Hard and Expert are part of Full.

MULTIPLAYER

Quick Match is a public math battle: two minutes at Medium difficulty, with addition, subtraction, multiplication, division, and percentages. A top finish can count on the Quick Match Top 5 leaderboard.

Private rooms use a shareable code. Create a room or join one a friend opened, then play the same two-minute match.

Sign in with Google Play Games to use your Play Games name and profile image.

BEST SCORES AND ACHIEVEMENTS

A personal best is saved for every topic, mode, and difficulty. A new record is marked on the result screen, and you can save or share that image.

Play leaderboards cover Mixed Sprint, Endless, and Survival at every difficulty, plus the same modes for Mixed Advanced. Quick Match has its own Top 5 board. A single-topic run keeps its own best and does not enter the Mixed board.

Achievements record a first qualifying win, a first Mixed finish in Sprint, Endless, or Survival, a perfect Sprint, an Expert Mixed run, lifetime correct-answer milestones, a Quick Match podium, and a Quick Match win.

FREE

• Easy difficulty
• Addition, subtraction, percentages, and fractions
• Practice, Sprint, Endless, and Survival on those topics
• Personal bests on your device
• Quick Match and private rooms
• Google Play Games sign-in

There are no ads.

SUBSCRIPTIONS

Partial and Full are optional auto-renewing subscriptions billed by Google Play. The price is shown in the app before you subscribe and can vary by country.

Partial includes Medium, multiplication, division, Mixed, decimals, BODMAS, and Mixed Advanced. Full adds Hard and Expert.

Cancel anytime in Google Play. You keep access through the period you already paid for. Google Play handles a change of tier. Use Restore purchase after a reinstall or on another phone with the same Google account.

Play Brain Battle as a math quiz, a multiplication game, or a short brain-training session. Practice fractions, percentages, decimals, and BODMAS, then rank a Mixed Sprint or try Mixed Advanced.

Download Brain Battle and sharpen your mental math.