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Addition of 3 Directed Numbers
Author:
Chan Man Fai
Addition of 3 Directed Numbers
GeoGebra
New Resources
兩位數加法
拼砌四邊形
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
Discover Resources
圓外一點到圓的距離
平行四邊形變奏II
二次函數：一般式轉標準式 (配方法)
圓與切線
正三角形在长方形边上移动加滚动
Discover Topics
Logarithmic Functions
Tree Diagrams
Sequences and Series
Continuity
Geometric Mean