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BkD_act15_05c
Author:
Luk Sir
GeoGebra
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兩組對邊相等的四邊形
第八周作业
異分母分數減法
兩位數加法
GeoGebra笔记功能体验课件
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勝者即正義，可愛即正義~
國旗
百分數：折扣 / 賺賠
五組搶答
堆叠方块
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Variance
Statistics
Numbers
Histogram
Calculus