[KongchangAI]
Unverified80% confidenceSolutionTime unknown

数学启蒙路径:先用实物点数配对(2-3岁)→点数与数字符号配对(3-4岁)→数字大小顺序排列/凑十配对(4-5岁)→简单加减配对(5岁+),逐级选套装比一次买齐更有效

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