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三年级-数学（北京版）-实践活动——闰年

视频地址：https://video.cache.bdschool.cn/vd/b08784afa1cd5b2844c683f2ac73e361.mp4
附件：0427三年级数学（北京版）-实践活动——闰年-1教案.docx
附件：0427三年级数学（北京版）-实践活动——闰年-2PPT课件.pdf
附件：0427三年级数学（北京版）-实践活动——闰年-3学习任务单.docx

21 views Jul 15, 2021

三年级-数学（人教版）-用方向解决实际问题三年级-数学（人教版）-笔算除法第五课时

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