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二年級 乘法追擊
Author:
SIN MING WONG
,
CCYAU
乘法
GeoGebra
New Resources
畫出對稱圖形
兩組對邊相等和有直角的四邊形
判斷球體
四邊形的特性
異分母分數減法
Discover Resources
test book
祖暅之《綴術》：「緣冪勢既同，則積不容異。」
Tiling 2
解題三
三角形全等的理由 – 題5的副本
Discover Topics
Conic Sections
Prism
Logic
Numbers
Arithmetic Operations