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Addition of 2 Directed Numbers
Author:
Chan Man Fai
Addition of 2 directed numbers
GeoGebra
New Resources
找出對稱軸
画直线等分三角形的面积
四邊形的特性
第八周作业
兩位數加法
Discover Resources
賺賠：例1
除法Q5
函数求导
勾股定理的证明
比較五件物件的重量
Discover Topics
Exponent
Fractal Geometry
Inequalities
Solids or 3D Shapes
Combinatorics