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Net1- AB+AD+AE
Author:
GeoGebra Institute of WuXi
GeoGebra
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近似值：有效數字
三位數除以一位數（二）
兩組對邊相等和有直角的四邊形
兩位數加法
判斷球體
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由拉線80209傅筱茿螢橋國中
美國隊長
密铺图形
拋物線4--平行四邊形法
Quiz on Addition and Subtraction of Directed Numbers (2)
Discover Topics
Triangles
Symmetry
Expected Value
Solids or 3D Shapes
Rectangle