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Addition of 2 Directed Numbers
Author:
Chan Man Fai
Addition of 2 directed numbers
GeoGebra
New Resources
算柱 (兩位數)
兩位數除以一位數（二）
拼砌四邊形
GeoGebra笔记功能体验课件
【案例】2018年全国1卷理科12题
Discover Resources
圓外切四邊形對邊和等長
西瓦定理 (Ceva's Theorem)
四角柱算體積(可以切開)
最短路径
判斷球體
Discover Topics
Calculus
Trigonometry
Geometric Transformations
Median Value
Confidence Interval