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平行四邊形和長方形的大小
Author:
杜寶茵
GeoGebra
New Resources
画直线等分三角形的面积
三位數除以一位數（一）
兩位數加法
異分母分數減法
判斷球體
Discover Resources
七巧板貓咪2
GeoGebra
gjh-g01-01 單項乘以兩項差
正方形旋转夹脚45_原题
時距計算機 (時針改變)
Discover Topics
Division
Symmetry
Curve Sketching
Logarithm
Isosceles Triangles