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三年级数学(北京版)简单分数的加减法

视频地址：https://video.cache.bdschool.cn/vd/cf10eaeee9dc23099caa3352cfdeb373.mp4
附件：0612三年级数学（北京版）简单分数的加减法-1教案 .docx
附件：0612三年级数学（北京版）-简单分数的加减法-2PPT课件.pdf
附件：0612三年级数学（北京版）-简单分数的加减法-3学习任务单.docx

16 views Jul 15, 2021

三年级数学（人教版）-解决问题（二）三年级数学（北京版）-连乘问题第二课时

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