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Add and subtract (binary) 2
Author:
Ku, Yin Bon (Albert)
GeoGebra
New Resources
画直线等分三角形的面积
兩位數除以一位數（一）
四邊形的特性
異分母分數減法
畫出對稱圖形
Discover Resources
整數÷整數_工作紙（一）_題2
平移
圓周的計算
三角函数的副本
动圆与两圆外切与内切(1)
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Special Points
Ratios
Cone
Subtraction
General Quadrilateral