Isbn: 9787544295604 - 生活中的魔法数学——世界上超简单的心算法,[美国]亚瑟·本杰明 迈克尔·谢尔默/著 北京今日今,南海出版公司【质量保障 放心购买】 (1 Ergebnisse)

paperback. Zustand: New. Language:Chinese.Paperback. Pub Date: 2020-02 Publisher: Nanhai Publishing House Magic Math in Everyday LifeThe World's Simplest Mental Arithmetic is written by two outstanding American mathematics masters. The content is concise. clear. and engaging. The authors share lightning-fast mental arithmetic techniques and amazing number memorization tricks. It covers common addition. subtraction. multiplication. and division mental arithmetic. as well as complex operations like exponentiation and r.…