Secrets of Mental Math [The Mathemagician's Guide to Lightning Calculation and Amazing Math Tricks]

These simple math secrets and tricks will forever change how you look at the world of numbers.

Secrets of Mental Math will have you...

СКАЧАТЬ БЕСПЛАТНО КНИГУ "SECRETS OF MENTAL MATH [THE MATHEMAGICIAN'S GUIDE TO LIGHTNING CALCULATION AND AMAZING MATH TRICKS]"