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配方法 Completing the Square
Author:
Alex CHIK
GeoGebra
gMath 互動數學教室
http://www.geogebra.hk
New Resources
球體建築師
兩位數加法
畫出對稱圖形
錐體建築師
兩位數除以一位數（一）
Discover Resources
三角形數
Sequence指令練習(n的平方根)
異分母的分數加減
折長方形 62326 part2
Protractor-usage
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Calculus
Rectangle
Histogram
Matrices
Multiplication