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面積與周界活動
Author:
lkkbmaths teachers 檔案儲存用
GeoGebra
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兩組對邊相等和有直角的四邊形
兩位數加法
第八周作业
直角坐標平面上的旋轉變換
兩位數除以一位數（二）
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IQ 波形合成圖
start and end clock face
angle between 2 planes 01
俄罗斯方块
柱體建築師
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Means
Rational Numbers
Ratios
Special Points
Bar Chart or Bar Graph