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OverviewThis short book is a collection of simple and easily grasped tricks to speed up your mental arithmetic. If you want to master them you should realize that to be used fully they need to be approached conscientiously, not mechanically. But it pays to master them as they will enable you to do calculations in your head without error, as with written calculations. Full Product DetailsAuthor: Yakov PerelmanPublisher: Prodinnova Imprint: Prodinnova Dimensions: Width: 15.20cm , Height: 0.10cm , Length: 22.90cm Weight: 0.041kg ISBN: 9782917260982ISBN 10: 291726098 Pages: 18 Publication Date: 26 January 2019 Audience: General/trade , General Format: Paperback Publisher's Status: Active Availability: Available To Order ![]() We have confirmation that this item is in stock with the supplier. It will be ordered in for you and dispatched immediately. Table of ContentsReviewsAuthor InformationYakov Perelman (1882-1942) was a Russian and Soviet science writer and author of many popular science books. He has been known by his popular, witty and quite scientific works on physics, astronomy and mathematics, which are, moreover written in a marvelous language and are very readable. Tab Content 6Author Website:Countries AvailableAll regions |