Lightning calculation and other "mathemagic"

Lightning calculation and other "mathemagic"
In a lively show, mathemagician Arthur Benjamin races a team of calculators to figure out 3-digit squares, solves another massive mental equation and guesses a few birthdays. How does he do it? He'll tell you.

User reviews

There are no user reviews for this listing.
Already have an account?
Ratings
Overall
Comments