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Addition of 2 Directed Numbers
Author:
Chan Man Fai
Addition of 2 directed numbers
GeoGebra
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兩位數除以一位數（一）
GeoGebra笔记功能体验课件
兩位數加法
兩組對邊相等和有直角的四邊形
兩位數除以一位數（二）
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P4面積
正方体
旋轉體：8y² = x²(1 - x²)
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六个常见超越函数图像
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Logarithm
Kite
Statistics
Orthocenter
Coordinates