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Author:
李春培
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GeoGebra
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三位數除以一位數（一）
拼砌四邊形
判斷球體
兩位數除以一位數（二）
兩組對邊相等的四邊形
Discover Resources
中國火柴遊戲二
Elementary school math
【練習】資料整理與統計圖表─盒狀圖
p11-11
七巧板的副本
Discover Topics
Orthocenter
Volume
Isosceles Triangles
LCM and GCD
Confidence Interval