横向
1
Proven mathematical statement
4
Value that does not change
7
Repeated addition
8
Mathematical rule or equation
纵向
1
Line touching circle at one point
2
Closed shape with straight sides
3
Part of a line with two endpoints
5
Line crossing from corner to corner
6
Visual representation of data
9
Space between two intersecting lines
10
Number less than zero
11
Symbol representing unknown value