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根據百分率找數量（一）: 例2
Author:
GeoGebra Institute of Hong Kong
Topic:
Percentages
GeoGebra
New Resources
異分母分數減法
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
兩位數加法
三位數除以一位數（二）
Discover Resources
立體圖形的截面
外角和
MathMedia150206
二次涵数的图象y=ax^2+b的副本
祖冲之的期望：内棋与外棋
Discover Topics
Exponent
Upper and Lower Sum or Riemann Sum
Numbers
Function Graph
Coordinates