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乘法口诀
Author:
朱亮
GeoGebra
New Resources
錐體建築師
異分母分數減法
四邉形 (四年級) 教師版
【案例】2018年全国1卷理科12题
兩位數加法
Discover Resources
Lagrange
文字工具：設定旋轉文字位置
向量分解：解聯立
兩正方形重疊的形狀(配合習作40頁)
Uses of Trigonometry
Discover Topics
Arithmetic
LCM and GCD
Ratios
Statistical Characteristics
Bar Chart or Bar Graph