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圖E
Author:
whtong
GeoGebra
New Resources
小数 的副本
兩位數加法
兩組對邊相等和有直角的四邊形
柱體建築師
兩位數除以一位數（二）
Discover Resources
lim sin(x)/x = 1
Rounding Quiz (Combined) 小數位及有效數字：同步測驗
學資p.13第7題
amoeba
講義/試卷 函數圖形 (雙函數)
Discover Topics
Natural Numbers
Upper and Lower Sum or Riemann Sum
Similarity Transformation or Similarity
LCM and GCD
Pie Chart or Circle Chart