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Mental math tricks and number sense - from first grade to competition.
Mathemagic turns mental math into something you actually want to practice. Whether you're just learning to add or gearing up for a math competition, Mathemagic is packed with bite-sized tricks and shortcuts that make numbers make sense - not memorize-and-forget, but genuinely understand why they work. WHAT'S INSIDE • 167+ tricks spanning five levels: Little Kids, Kids, Teens, Adults, and Advanced/Competition • Six categories to explore: Arithmetic Shortcuts, Multiplication Tricks, Squaring & Estimation, Divisibility Rules, Number Theory Curiosities, and Mental Algebra • Every trick explained step-by-step, plus a "Why It's Useful" section so you know when you'd actually reach for it • Worked examples you can expand for a full line-by-line breakdown whenever a trick needs it PRACTICE THAT STICKS • Instant feedback on every answer, with running score and streak tracking • Select a single trick - or an entire category - to build a custom practice session • Mix tricks across difficulty levels for a personalized challenge MADE FOR EVERY LEARNER • Hide levels you don't need in Options, so your kid (or you) only sees what's relevant • Clean, distraction-free design that doesn't look babyish, even in "kid mode" • Full light and dark mode support, plus an optional full-screen mode • Works completely offline - no account, no internet required From adding 9 by adding 10 and subtracting 1, to Vieta's formulas and the Rule of 72, Mathemagic grows with you. Start with the basics, or jump straight to competition-level number theory - the choice is yours.