Isbn: 9787121227530 - 数学思维启蒙——小学奥数二年级 (1 resultados)

paperback. Condición: New. Paperback. Pub Date :2014-04-01 Pages: 112 Language: Chinese Publisher: Electronic Industry Press This book brings together sophomore learned extracurricular knowledge to enable students to use the book to learn the system. to consolidate and improve . The main contents include: rapid calculation and simple calculation. clever fill operator. graphic count. graphics decile with scissors fight. find the number of columns Graphic law. period problems. Magical enumeration method of drawing to sol.…