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乘法分配律与面积
Author:
刘文明
Topic:
Multiplication
GeoGebra
New Resources
圓周公式的應用
祖冲之的期望：内棋与外棋
斜率的值
龙形曲线-分形龙2
常见四边形是否是双心四边形
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輪盤輪盤
Values of nCr & nPr 排列與組合的值
千年曆
二位數除以一位數商一位
Quiz on Addition and Subtraction of Directed Numbers (2)
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Ratios
Tangent Line or Tangent
Percentages
Prism
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