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Addition of 2 Directed Numbers
Author:
Chan Man Fai
Addition of 2 directed numbers
GeoGebra
New Resources
畫出對稱圖形
找出對稱軸
四邊形的特性
兩位數除以一位數（一）
算柱 (兩位數)
Discover Resources
一元一次不等式圖形
Addition and Subtraction of Polynomials 1(多項式的加減法 1)
求三棱锥体积
線性規劃例7
堆四顆球
Discover Topics
Plane Figures or Shapes
Dilation
Interest Calculation
Histogram
Tangent Function