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Author:
andrewtang123
GeoGebra
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兩位數加法
柱體建築師
GeoGebra笔记功能体验课件
【案例】2013年安徽高考15题
兩位數除以一位數（一）
Discover Resources
下和
類正五邊形摺法
周界
Quiz on Signs of Coefficients of Quadratic Functions 二次函數係數的正負號：測驗
Copy of cos(x) 的圖形
Discover Topics
Division
Variance
Random Variables
Pie Chart or Circle Chart
Fractal Geometry