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折扣 例2
Author:
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
錐體建築師
球體建築師
兩位數除以一位數（一）
第八周作业
異分母分數減法
Discover Resources
判別線型函數(隨機出題)
物理問題
生活中的平面圖形問題2
圖B
Ladder on Wall
閱讀月曆（綜合版）
Discover Topics
Cuboid
Random Experiments
Logarithmic Functions
Division
Fractions