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近似值:小數位及有效數字
Author:
Alex CHIK
點擊藍色點或紅色點來找出所輸入數字的上捨入值和下捨入值。
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
New Resources
四邊形的特性
兩組對邊相等的四邊形
畫出對稱圖形
三位數除以一位數(一)
異分母分數減法
Discover Resources
Graph of Sine Function 正弦函數圖像
外资知名
Compare areas by cutting shapes Q2
勾股树的副本
过一直线与已知直线相交
Discover Topics
Right Triangles
Arithmetic Operations
Planes
Set Theory
Pie Chart or Circle Chart