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一年级数学（北京版）-两位数减一位数退位减法（二）

视频地址：https://video.cache.bdschool.cn/vd/75e34f95b73254d7d774b2dd0970a53f.mp4
附件：0522一年级数学（北京版）-两位数减一位数退位减法（二）-1教学设计.doc
附件：0522一年级数学（北京版）-两位数减一位数退位减法（二）-2PPT课件.pdf
附件：0522一年级数学（北京版）-两位数减一位数退位减法（二）-3学习任务单.docx

15 views Jul 15, 2021

一年级数学（北京版）-两位数减一位数退位减法（一）一年级数学（北京版）两位数加、减整十数（二）

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