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waaachen
Author:
陳兪宏
偷懶版本~~~
GeoGebra
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異分母分數減法
兩組對邊相等的四邊形
兩位數除以一位數（二）
GeoGebra笔记功能体验课件
四邊形的特性
Discover Resources
包含除法（整數或分數 ÷ 分數）
雙曲線之極偶 / polarity for hyperbola
平行1
同分母分數除法
Copy of 愛心
Discover Topics
Rational Numbers
Histogram
Square
Percentages
Difference and Slope