Seller: liu xing, Nanjing, JS, China
paperback. Condition: New. Language:Chinese.Paperback. Pub Date: 2020-12-01 Pages: 76 Publisher: Tongji University Press This book is a supplementary exercise synchronized with the textbook. and it is a special breakthrough in the difficulty of application problems.?In the content design. from easy to difficult. step by step. it focuses on training primary school students' problem-solving ideas and improving their thinking ability.?The exercises of each unit are divided into three levels: 1. Practice basic skills dilig. Seller Inventory # NS065520