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減法
Author:
陳冠彰
Topic:
Subtraction
義守財數101級製作
GeoGebra
New Resources
球體建築師
四邉形 (四年級) 教師版
判斷球體
畫出對稱圖形
拼砌四邊形
Discover Resources
Surface area of sphere
分水問題
從長方形的「周界」找回它的「長」和「闊」
拼出三角形的副本
橢圓的副本
Discover Topics
Means
Incircle or Inscribed Circle
Median Value
Orthocenter
Cylinder