Isbn: 9787545571738 - 学而思小学数学高频易错题精讲六年级上册北师版bs 6年级校内同步 涵盖156个校内易错点、223个避“坑”技巧、273个讲解视频、39道例题234道练习（北师&人教 3-6年级可选） (1 resultados)

Xueersi Primary School Mathematics High-frequency Error-prone Questions Intensive Lecture Sixth Grade Volume 1 North Normal Edition BS 6th Grade School Synchronization Covers 156 school error-prone points. 223 pitfall avoidance skills. 273 explanation videos. 39 sample questions and 234 exercises (O(Chinese Edition)