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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
拼砌四邊形
直角坐標平面上的旋轉變換
兩組對邊相等的四邊形
異分母分數減法
兩位數除以一位數（一）
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clock
風車2
橢圓軌跡01
Cuboid 長方體
矩阵（自动）计算（数据为0-5的随机数）
Discover Topics
Vectors
Complex Numbers
Area
Exponential Functions
Geometry