ISBN: 9787115565457 - 9小数学思维训练+逻辑推理 玩转奥数立体互动游戏书 有趣的3d立体抽拉翻翻书 6-7-10岁一二三四年级小学数学奥数练习课外书读物 (1 resultados)

paperback. Condición: New. Language:Chinese.Paperback. Pub Date: 2021-09-01 Pages: 24 Publisher: Peoples Posts and Telecommunications Publishing House. This is a three-dimensional interactive game book for Mathematical thinking and enlightenment. It contains 6 kinds of elementary schools. including cow eating grass problems. engineering problems. and drawer principles. Classic Mathematical Mathematical questions in stages.?There are more than 20 deformation exercises and more than 80 movable three-dimensional organs in.…