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waaachen
Author:
陳兪宏
偷懶版本~~~
GeoGebra
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兩位數加法
第八周作业
三位數除以一位數（一）
兩組對邊相等的四邊形
三位數除以一位數（二）
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弧度
Text in Spreedsheet
題二
Reflectional symmetry of Triangular prism
比較角的大小 一
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Perimeter
Natural Numbers
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Plane Figures or Shapes
Isosceles Triangles