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Author:
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GeoGebra
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異分母分數減法
三位數除以一位數（二）
兩位數除以一位數（一）
GeoGebra笔记功能体验课件
兩位數加法
Discover Resources
一般變換
球面與截平面的關係
畢氏定理動態證明(四塊直角三角形移動)
生活中的平面圖形問題1
正方体展开图的副本
Discover Topics
Pythagoras or Pythagorean Theorem
Normal Distribution
Parabola
Prism
Solids or 3D Shapes