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20180407 同分母分數減法 TEST
Author:
makkei
GeoGebra
New Resources
異分母分數減法
畫出對稱圖形
算柱 (兩位數)
第八周作业
三位數除以一位數（二）
Discover Resources
大樂透開獎機2
正十二面體
以剪貼比較圖形大小 題1
正多面體
描点法画函数图像
Discover Topics
Median Line
Similarity Transformation or Similarity
Optimization Problems
Upper and Lower Sum or Riemann Sum
Tangent Line or Tangent