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分數棒
Author:
YIP
GeoGebra
New Resources
異分母分數減法
拼砌四邊形
算柱 (兩位數)
找出對稱軸
兩位數除以一位數（一）
Discover Resources
P4 分數基礎
三角錐(旋轉，實體、透視)
网络资源使用说明
酷狗音乐
图中的三角形面积何时最小？（许兴华数学）
Discover Topics
Plane Figures or Shapes
Symmetry
Equations
Congruence
Kite