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二年級 乘法追擊
Author:
SIN MING WONG
,
CCYAU
乘法
GeoGebra
New Resources
算柱 (兩位數)
畫出對稱圖形
sanjiaohanshu
拼砌四邊形
兩組對邊相等和有直角的四邊形
Discover Resources
垂足三角形
題6
梯形旋轉
各種切圓
函数
Discover Topics
Isosceles Triangles
Fractal Geometry
Reflection
Translation
Integral Calculus