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切3塊拼成正方形
Author:
李春培
切3塊拼成正方形
GeoGebra
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算柱 (兩位數)
直角坐標平面上的旋轉變換
第八周作业
兩組對邊相等的四邊形
四邉形 (四年級) 教師版
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Task 5: Regular Hexagon
Addition of 2 Directed Numbers
思考題
maths
線的面化
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Trigonometry
Sphere
Addition
Linear Functions
Arithmetic