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五年级-数学（北京版）-约分（一）

视频地址：https://video.cache.bdschool.cn/vd/ac23acfdad32999bfb726b8ea864e75d.mp4
附件：0605五年级数学（北京版）-约分（一）-1教案.docx
附件：0605五年级数学（北京版）-约分（一）-2PPT课件.pdf
附件：0605五年级数学（北京版）-约分（一）-3学习任务单.docx

19 views Jul 15, 2021

五年级-数学（人教版）-长方体和正方体的表面积（三）五年级-数学（人教版）-约分（二）

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