数学启蒙5-6岁·第2阶 (Mathematics Enlightenment 5-6 years old·Level 2)
ebook ∣ 阶梯数学思维训练 (Step-by-Step Mathematical Thinking Training)
By Zhen Guoguo
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本套丛书依据儿童自身思维发展特点，严谨、系统地根据学前数学教育的内容编撰思维训练题。希望小朋友通过这些练习，一步步提高，打好基础，自信地进入小学。《数学启蒙5-6岁·第2阶》初步认识50以内的顺序数和相邻数；学习20以内的进位加法和退位减法；学习竖式加减法运算；初步接触100以内的数。
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