Mental Calculators Books
Books con argomento Mental Calculators
Secrets of Mental Math
edizioni Three Rivers Pr collana Three Rivers Pr (Paperback)
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 in no time. Get ready to amaze your friends—and yourself—with incredible calculations you never thought you could master, as renowned “mathemagician” Arthur...