Mathemagic: Mental Math

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.