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20191120大A班韩梓萱《淋掉的数字》.mp4

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旭日东升
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Published on 20 Nov 2019 / In Education environment

淋掉的数字

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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,掌握10以内各数的相邻数,初步了解前后数字多1和少1的关系,真棒。

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