[速算] [巧算]
[数数与计数] [数桔子]
[认识简单数列] [二年级]
[自然数列] [趣题]
[找规律] [排序]
[填图] [拆数]
[考虑所有可能的情况] [二年级]
[仔细审题] [二年级]
[猜猜凑凑] [二年级]
[列表尝试法] [机智题]
[画图凑数法] [凑数]
[机智与顿悟] []
[一笔画问题] [二年级]
[七座桥问题] [二年级]
[数字游戏问题] [巧填算符]
[整数的分拆] [二年级]
[枚举法] [组合]
[逆序推理法] [重叠问题]
[画图显示法] [排队买票]
[等量代换] [二年级]
[等式加减法] [调班]
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