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2019-11-18 大A班 郑彧岚-5以内的相邻数

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Published on 18 Nov 2019 / In Education environment

2019-11-18 大A班 郑彧岚-5以内的相邻数

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vvvv
vvvv 6 years ago

宝贝认真学习 ,知道了数学中相邻数的概念,完全掌握了5以内各数的相邻数。

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