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Author:
FU KAM MAN
GeoGebra
New Resources
兩位數除以一位數（一）
兩位數加法
GeoGebra笔记功能体验课件
柱體建築師
三位數除以一位數（二）
Discover Resources
指數與對數的對稱性
銀杏葉
橢圓規Ellipsograph (Trammel of Archimedes)
Illusion-内凹的正方形
圓周 (圖形D) 的複本
Discover Topics
Fractions
Probability
Logarithm
Numbers
Ellipse