第188集 | 竖式谜，找到数之间的关系 #小学数学 #数学思维训练 #竖式谜 #趣味数学 #每天学习一点点就会有收获 @dou+小助手
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欢迎来到“爱学习爱玩的宁宁” 专属频道，这里是知识与趣味齐飞的成长乐园 ！ 咱宁宁可是学习小能手 ，致力于帮大家培养超厉害 ...
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