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Author:
洪宜慧
GeoGebra
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三位數除以一位數（一）
兩位數加法
平行線的斜率
異分母分數減法
祖冲之的期望：内棋与外棋
Discover Resources
拋物線(開口向上)
選擇合適的「中間人」
曲線上的箭頭 (Arrow on Curve)
sin(x) 的函數圖形的副本
拋物線(左右型)標準式
Discover Topics
Tangent Line or Tangent
Translation
Differential Calculus
Area
Scalene Triangles