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Author:
wang3213
GeoGebra
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異分母分數減法
兩位數除以一位數(二)
三位數除以一位數(一)
拼砌四邊形
錐體建築師
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銳角三角函數值的大小比較
NCM(2nd)
mathmedia_40204
正三角形
应用与艺术
Discover Topics
Equilateral Triangles
Rational Numbers
Planes
Similarity Transformation or Similarity
Quadratic Equations