Amvik eBook Solutions

These simple math secrets and tricks will forever change how you look at the world of numbers. Secrets of Mental Math will have you thinking like a math genius

Reprint of the original, first published in 1875.

Clear, concise compendium of about 150 time-saving math short-cuts features faster, easier ways to add, subtract, multiply, and divide. Each problem includes an

Did you know that it's easier to add and subtract from left to right, rather than the other way round? And that you can be taught to square a three-digit number