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根據百分率找數量（一）:例1的副本
Author:
音节-Lisa
,
GeoGebra Institute of Hong Kong
GeoGebra
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【案例】2018年全国1卷理科12题
兩組對邊相等的四邊形
近似值：有效數字
兩位數除以一位數（二）
異分母分數減法
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樞紐問題
乘方
Quiz on Solving Quadratic Inequalities 解二次不等式：測驗 (v2018)
圖形C
数一数
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Standard Deviation
Unit Circle
Limits
Scalene Triangles
Area