Mental Math Tricks vs Trachtenberg Kids

MathMind teaches you real mental math techniques - not gimmicks, not drills you'll forget tomorrow. Learn the same shortcuts used by mathematicians, chess players, and memory athletes to calculate faster than a calculator. 30 PROVEN TRICKS, 7 CATEGORIES: Master techniques across every major area of mental arithmetic: - Multiplication: square numbers ending in 5, multiply by 11, multiply two-digit numbers instantly - Division: divisibility rules, divide by 5, divide by 25 - Squares and roots: square any two-digit number, estimate square roots - Percentages: the percentage flip trick, tips in seconds, compound growth - Fractions: convert, compare, and calculate - Addition and subtraction: round-and-adjust, left-to-right addition - Advanced: day of the week for any date, digit sums, cube estimation THREE WAYS TO LEARN: LEARN - Each trick has a clear explanation, worked examples with step-by-step walkthroughs, and a "Why does this work?" section that shows the underlying math. PRACTICE - Drill any trick with infinite auto-generated problems. Track your accuracy, streak, and solve time as you improve. CHALLENGE - Timed tests across all tricks you've learned. Compete against your own best. Take the Daily Challenge - the same problems for everyone, every day. BUILT FOR REAL PROGRESS: - Speed graphs: watch your solve time drop week by week - Day streaks: build a consistent practice habit - Category breakdown: see exactly where you're strong and where to focus - Combo multipliers: chain correct answers for bonus scoring - Haptic feedback and smooth animations HONEST PRICING: MathMind is free to download with 5 foundational tricks unlocked. Unlock all 30 tricks with a single one-time purchase - no subscriptions, no ads, no data collection, ever. PRIVACY FIRST: Your progress stays on your device. MathMind has no accounts, no sign-ups, no analytics, no trackers, no ads. Nothing leaves your phone, unless you manually share it. Whether you're a student preparing for exams, a professional who wants to run mental calculations in meetings, or just someone who enjoys training their brain - MathMind gives you the tools to think faster. Download and start learning in seconds!

Trachtenberg Kids turns multiplication into a superpower. Using the famous Trachtenberg system — the "speed math" once taught to engineers — your child learns to multiply big numbers in their head, no calculator needed. Every lesson reveals a secret, walks your child through it step by step, then builds confidence with guided practice, free play, and a 60-second Speed Round. Friendly mascots and a "Show Off" mode keep them coming back. WHAT YOUR CHILD LEARNS • ×11 and ×12 • The halving family: ×5, ×6, ×7 • The complement family: ×9, ×8, ×4, ×3 • How to multiply 2-digit numbers in their head, left to right HOW IT WORKS • Watch the trick revealed with a fun animation • Practice with step-by-step hints, then solo • Beat the clock and build a streak • Earn stars and unlock the next trick MADE FOR FAMILIES • One family account, a profile per kid — progress syncs across devices • A grown-up area protected by a parent PIN • No ads. No chat. No tracking. FREE & PREMIUM The ×11 trick is free. Unlock every trick with Trachtenberg Kids Premium — an auto-renewable subscription. It renews automatically unless cancelled at least 24 hours before the period ends; manage or cancel anytime in Settings > Apple ID > Subscriptions. Privacy Policy: https://trachtenberg-kids.pages.dev/legal/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/