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根據百分率找數量（一）: 例3的副本
Author:
冯圣军
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
四邉形 (四年級) 教師版
近似值：有效數字
三位數除以一位數（一）
異分母分數減法
判斷球體
Discover Resources
Polygon incised
Task 1: Rectangle Construction
初三作业
冷氣機的銷量
指數與對數
Discover Topics
Scalene Triangles
Tangent Function
Cylinder
Symmetry
Geometry