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翰林數學_2下_CH3-1_三角形的外角和
Author:
翰林數學
GeoGebra
New Resources
錐體建築師
畫出對稱圖形
三位數除以一位數（一）
異分母分數減法
直角坐標平面上的旋轉變換
Discover Resources
分數除法4: 1 ÷ a/b (包含)
數學作業
探究平行四邊形面積(2)
動畫初階練習1(平移)
二次函数问题
Discover Topics
Straight Lines
Pythagoras or Pythagorean Theorem
Normal Distribution
Logarithmic Functions
Statistical Characteristics