Download or read book Basic Course of Mental Arithmetic written by Yusnier Viera and published by Createspace Independent Pub. This book was released on 2012-05-19 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: The author, Yusnier Viera, has several World Records in Mental Calculation and has appeared in prestigious TV channels like CNN & ABC. He starred in the Discovery Channel show "Super Human Lab" in 2012. Viera is willing to teach all his secrets to calculate mentally.