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一年级数学(北京版)神奇的七巧板

视频地址：https://video.cache.bdschool.cn/vd/6f7c6783c7e2a2c5cb37370773942656.mp4
附件：0619一年级数学（北京版）神奇的七巧板-1教案.doc
附件：0619一年级数学（北京版）神奇的七巧板-2PPT课件.pdf
附件：0619一年级数学（北京版）神奇的七巧板-3学习任务单.docx

21 views Jul 15, 2021

一年级-数学（北京版）-100以内数的认识一年级数学(北京版)两位数加两位数进位加法（二）

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