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Author:
吳秉沂
GeoGebra
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三位數除以一位數(二)
找出對稱軸
【案例】2018年全国1卷理科12题
sanjiaohanshu
算柱 (兩位數)
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豆奶
五上_分數乘法(教師版)
錐體建築師
MCYO 乘法大師
test
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Multiplication
Trigonometry
Logarithm
Secant Line or Secant
Arithmetic