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Multiplication of Directed Numbers
Author:
chisunch1
GeoGebra
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四邉形 (四年級) 教師版
三位數除以一位數（一）
【案例】圆柱体内放置一个大球六个小球
畫出對稱圖形
兩組對邊相等的四邊形
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Quiz on Conditions for Congruence of Triangles 全等三角形的判定條件：測驗
Brahmagupta 四邊形的構造方法
test
Ex.3
正三角形堆垛
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Fractions
Equations
Triangles
Real Numbers
Poisson Distribution