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橢圓1--四圓心近似法
Author:
26林佳玟1
橢圓1--四圓心近似法
GeoGebra
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近似值：有效數字
算柱 (兩位數)
三位數除以一位數（二）
GeoGebra笔记功能体验课件
兩位數加法
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Key stage 1
ex_1
國旗
单晨制作水箱侧翻通用模型
楼梯
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Inequalities
Functions
Parabola
Multiplication
Sequences and Series