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Author:
孟宝兴
GeoGebra
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錐體建築師
異分母分數減法
兩組對邊相等和有直角的四邊形
兩位數加法
GeoGebra笔记功能体验课件
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相似形_Collection
分數乘法
藝術著色的副本
分页显示及分步显示
角的介紹 | Introduction to Angles
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Surface
Ratios
Area
Triangles
Conditional Probability