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自學材料_兩位數乘兩位數
Author:
Cychoy
Topic:
Multiplication
GeoGebra
New Resources
兩組對邊相等的四邊形
画直线等分三角形的面积
兩位數除以一位數（一）
【案例】圆柱体内放置一个大球六个小球
算柱 (兩位數)
Discover Resources
Quiz on Addition and Subtraction of Directed Numbers (2) 有向數加減測驗(2)
Trigonometric Ratios of Special Angles 特殊角的三角比
二元一次方程式圖形
九點圓
test08
Discover Topics
Matrices
Exponent
Orthocenter
Symmetry
Scatter Plot