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Expansion & Factorization 展開與因式分解
Author:
Alex CHIK
GeoGebra
gMath 互動數學教室
http://www.gmath.hk
New Resources
兩位數除以一位數（一）
四邊形的特性
第八周作业
三位數除以一位數（二）
算柱 (兩位數)
Discover Resources
牟合方蓋：兩圓柱交集
鑲嵌圖形-2 ROZE
Proof of Pythagorean Theorem with Shearing
曲線
小一_比較20以內的數
Discover Topics
Difference and Slope
Cosine
Orthocenter
Interest Calculation
Congruence