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数轴上的整数加法
Author:
啊哦呃
数形结合，形象直观的整数加法。
GeoGebra
New Resources
三位數除以一位數（一）
【案例】2018年全国1卷理科12题
四邊形的特性
兩位數除以一位數（一）
兩組對邊相等的四邊形
Discover Resources
Symmetric設計對稱圖案(一條對稱軸)斜2
How to draw a hexagon with ruler and compasses?
陳允杰 橢圓反射
Similar triangles reasons 2
立方體的截平面
Discover Topics
Sequences and Series
Constructions
Step Functions
Root
Line Segment