横向
1
Number that divides evenly into another
4
Mathematical statement of equality
9
U-shaped curve of a quadratic function
10
Comparison of two quantities
纵向
2
Proven mathematical statement
3
Line crossing from corner to corner
5
The number representing nothing
6
Corner point of a polygon
7
Space between two intersecting lines
8
Three-sided polygon
9
Closed shape with straight sides
11
Mathematical rule or equation