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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
找出對稱軸
四邉形 (四年級) 教師版
球體建築師
三位數除以一位數（一）
兩位數加法
Discover Resources
test03
剪刀石頭布
凸透镜成像
太极图
正立方體切三刀
Discover Topics
Exponent
Inequalities
Geometric Transformations
Isosceles Triangles
Right Triangles