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2-5的分解与组合知识点.mp4

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徐老师
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Published on 15 Oct 2019 / In Education environment

2-5-的分解与组合知识点

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徐老师
徐老师 6 years ago

把家里的物品拿出来摆一摆,分一分,小朋友就会更清楚了,把锻炼和学习的机会给予小朋友,相信他可以的

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