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根據百分率找數量（二）: 例1
Author:
GeoGebra Institute of Hong Kong
Topic:
Percentages
GeoGebra
New Resources
四邉形 (四年級) 教師版
Earth with coastline
美國國旗 (Claude 版)
算柱 (兩位數)
找出對稱軸
Discover Resources
分數加法和減法
集合
平行四边形平移
面積
橢圓P176例11
Discover Topics
Sine
Interest Calculation
Coordinates
Correlation
Arithmetic Operations