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乘法
Author:
chen mingchuan
Topic:
Multiplication
GeoGebra
New Resources
兩位數除以一位數（二）
探究三角形的全等條件
画直线等分三角形的面积
第八周作业
圓周公式的應用
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範例：自製工具「格線」
除法運算
mathmedia_40204
旋转直角
線性規劃(半平面)
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Circle
Complex Numbers
Intersection
Angles
Set Theory