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任務5
Author:
gklwong
Topic:
Triangles
GeoGebra
New Resources
異分母分數減法
兩組對邊相等和有直角的四邊形
GeoGebra笔记功能体验课件
小数 的副本
三位數除以一位數（二）
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七巧板揖人2
Addition and Subtraction of Directed Numbers (1) 有向數加減(1)
扇形面積公式
平移法（一）
拋物線2--焦點法
Discover Topics
Upper and Lower Sum or Riemann Sum
Unit Circle
Kite
Division
Sphere