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根據百分率找數量（一）: 例4
Author:
GeoGebra Institute of Hong Kong
Topic:
Percentages
GeoGebra
New Resources
判斷球體
異分母分數減法
兩位數加法
三位數除以一位數（一）
畫出對稱圖形
Discover Resources
fold and unflod the cone with geogebra5.0
不規則圖形的周界(intro Square)
包絡線1
识货
三角形全等的理由 – 題2的副本
Discover Topics
Intersection
Vectors 2D (Two-Dimensional)
Real Numbers
Plane Figures or Shapes
Addition