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小阿樂
Author:
Timo0329
小阿樂
GeoGebra
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四邉形 (四年級) 教師版
兩位數加法
兩組對邊相等和有直角的四邊形
畫出對稱圖形
異分母分數減法
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Standard Deviation (one data set) 標準差（一組數據）
[問題] 已知△PAB 的面積與周長，有幾個 P 點？
柱體高度與體積
P1 1st Maths
和两个圆都相切的圆
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Matrices
Histogram
Statistical Characteristics
Diagrams
Trigonometric Functions