Mental Math Games vs Trading Interview Math Trainer

Numbio (formerly FastMath) turns mental math into a fast, satisfying daily habit. Train arithmetic, master your times tables, and watch your calculation speed climb in just a few minutes a day. WHY NUMBIO? • Practice that adapts to you: difficulty scales from Easy to Extreme as you improve. • Bite-sized sessions for any schedule: a 60-second speed test or a full training plan. • Actually fun: turn drills into a game and keep your daily streak alive. PRACTICE EVERYTHING • Free core arithmetic: addition, subtraction, multiplication & division • Times tables, digit sums, mixed expressions & chained operations* • Word problems, equations, rule of three, fractions, GCD & LCM* • Advanced operations: percentages, squares, square roots & modulo* • Every number type: decimals, money, fractions, binary, Roman numerals & more* • Build your own custom training plans: practice exactly what you want* LEARN THE TRICKS • Step-by-step mental-math tricks and shortcuts that make hard sums easy • Practice any trick right away with a matching, ready-made drill* • A personalized "For You" feed that suggests what to learn next* PLAY & COMPETE • Brain-teasing games: Number Hunt, Magic Square, Sudoku & Mini Sudoku • Climb Game Center leaderboards and unlock dozens of achievements TRACK YOUR PROGRESS • Build daily streaks and hit personal goals that keep you coming back • Earn XP and level up through ten ranks, from Bronze to Diamond • Watch your speed and accuracy climb with detailed stats and personal bests • Set daily reminders so you never break your streak ON ALL YOUR DEVICES • Cross-device sync keeps your progress in step wherever you practice • Jump in within seconds from Home Screen and Lock Screen widgets • Family Sharing: share Numbio Pro with up to five family members • Available in 29 languages PERFECT FOR Students building arithmetic confidence • Test-takers prepping for GMAT, GRE & entrance exams • Professionals staying sharp • Parents and kids learning times tables • Anyone who loves a good number puzzle Join thousands of learners worldwide sharpening their mental math with Numbio. Questions or feedback? We'd love to hear from you at hello@numbio.com. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula Privacy Policy: https://www.numbio.com/privacy * Requires a Numbio Pro subscription.

Prepare for trading interviews at top trading firms with the Trading Interview Math Trainer - the most dedicated mental arithmetic practice app. FIVE GAME MODES • Integers - Build your foundation with whole number calculations • Decimals - Master decimal arithmetic with all operators • Fractions - Practice fraction operations • Full - Challenge yourself with mixed arithmetic problems • Custom - Tailor difficulty to your exact needs TWO QUESTION FORMATS • Open Response - Type your answers in an open answer field • Multiple Choice - Choose from four options COMPREHENSIVE ANALYTICS • Track accuracy and speed trends over time • Identify weak areas with detailed weakness reports • View timing heatmaps to find your peak performance hours • Monitor operation-specific statistics (addition, subtraction, multiplication, division) GAMIFICATION & MOTIVATION • Earn XP and level up as you practice • Build daily streaks with streak freeze protection • Unlock achievements for reaching milestones • Compete on weekly and all-time leaderboards • Track personal bests for every mode and duration CLOUD SYNC & ACCOUNTS • Sign in with Google or Apple for seamless sync • Access your progress across all your devices • Never lose your statistics or achievements DESIGNED FOR TRADERS This app is part of the Trading Interview platform (tradinginterview.com) - built specifically for aspiring traders and finance professionals. The question difficulty and formats mirror what you can encounter in real trading firm interviews. Whether you’re preparing for your first trading interview or maintaining your mental math skills, this app provides the focused practice you need to succeed. Download now and start training!