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Author:
Jia-ming Shiu
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GeoGebra
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三位數除以一位數（二）
異分母分數減法
兩位數加法
球体的体积推导
球體建築師
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Math_Class Activity 1
gjh-g03-01 和的平方公式
圓錐展開圖
國旗
初中几何证明
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Real Numbers
Complex Numbers
Circle
Quadratic Functions
Reflection