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antidoctor
GeoGebra
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兩位數加法
画直线等分三角形的面积
找出對稱軸
算柱 (兩位數)
兩位數除以一位數(一)
Discover Resources
畫三角形 題2b
設計對稱圖形
一元二次不等式測驗
Progressive Formula
百分數:折扣 / 賺賠
Uses of Trigonometry
Discover Topics
Quadratic Functions
Random Variables
Symmetry
Parabola
Fractal Geometry