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勾股定理
Author:
梁航宇
Topic:
Pythagoras or Pythagorean Theorem
GeoGebra
New Resources
兩位數加法
錐體建築師
異分母分數減法
柱體建築師
三位數除以一位數（二）
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正弦函数图像
正弦函數值的變化
正n邊形與圓上點的中點軌跡(解析)
四下_認識小數(教師版)
翰林數學_2下_CH4-3_梯形中線性質
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Addition
Probability
Logarithm
Variance
Subtraction