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根據百分率找數量（二）: 例2的副本
Author:
冯圣军
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
異分母分數減法
GeoGebra笔记功能体验课件
三位數除以一位數（一）
【案例】2018年全国1卷理科12题
拼砌四邊形
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平方根
基礎作圖1
合 24（附答案）
碎形
翰林數學_2下_CH3-1_三角形的內角與外角
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Congruence
Statistics
Equilateral Triangles
Isosceles Triangles
Random Variables