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Perimeter
Author:
Miss Tsui
,
Anthony OR 柯志明
GeoGebra
New Resources
四邉形 (四年級) 教師版
【案例】圆柱体内放置一个大球六个小球
錐體建築師
畫出對稱圖形
三位數除以一位數（二）
Discover Resources
waaachen
全等三角形: 重溫
Value of Polynomials(多項式的值)
tool
根據百分率找數量（一）:例1的副本
Discover Topics
Fractions
Pyramid
Perimeter
Arithmetic Operations
Inequalities