ISBN: 9787121434884 - 官方正版 小学数学学测记（四年级下册）四步阶梯学习法 小学通用青少年代小学数学的竞赛标准参考学习书 中小学教辅 徐卫 著 (1 Ergebnisse)

paperback. Zustand: New. Paperback.Pub Date:2022-06-01 Pages:165 Language:Chinese Publisher:Electronic Industry Press This book is a set of exercises for the second volume of the fourth grade of elementary school mathematics. including three parts: homework. unit diagnosis and reference answers. In the homework. the questions are divided into 4 to 5 levels according to the difficulty. and the maximum difficulty is 1 expansion question. Use fewer but more precise questions to help children learn and practice. In the h.…