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五年级-数学（人教版）-分数加减法（一）

视频地址：https://video.cache.bdschool.cn/vd/57586cf7fe6de9002f9fd9e74c441ad8.mp4
附件：0617五年级数学（人教版）-分数加减法（一）-1教案.docx
附件：0617五年级数学（人教版）-分数加减法（一）-2PPT课件.pdf
附件：0617五年级数学（人教版）-分数加减法（一）-3学习任务单.docx

20 views Jul 15, 2021

五年级-数学（人教版）-分数加减法（二）五年级-数学（北京版）-分数加、减混合运算（一）

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