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GGB4
Author:
詠甯
GeoGebra
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四邊形的特性
三位數除以一位數（一）
拼砌四邊形
兩位數加法
直角坐標平面上的旋轉變換
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反射對稱
圓柱曲面
包絡線
玖数小学数学（思维拓展）
表内除法
Discover Topics
Equations
Curve Sketching
Volume
Difference and Slope
Arithmetic Operations