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題三
Author:
GeoGebra Institute of Hong Kong
Topic:
Area
GeoGebra
New Resources
近似值：有效數字
第八周作业
三位數除以一位數（一）
兩位數除以一位數（一）
兩組對邊相等和有直角的四邊形
Discover Resources
中心对称
比較3個分數大小
時針與分針的夾角
串珠(兩種顏色)
Pappus Chain
Discover Topics
Surface
Tree Diagrams
Division
Cylinder
Multiplication