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米奥的生日派对（2025版）
米奥的生日派对（2025版）
学习有效期 长期有效
简介
通过生活情景、画示意图、写表达式等实验过程，了解20以内连加连减的算理，同时让学生建立整体与局部之间的关系，提炼对应的表达式，形成初步的应用意识， 提升学科能力，训练数学抽象，学会举一反三。
学习目录
购买完成后即可查看课程目录～
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