横向
1
Split into equal parts
3
Part of a circle's circumference
5
Lines that never intersect
7
Single numeral from 0 to 9
8
Rectangle with four equal sides
纵向
2
Number divisible only by 1 and itself
3
Space between two intersecting lines
4
Mathematical statement of equality
5
Total distance around a shape
6
Comparison of two quantities
8
Part of a line with two endpoints
9
Number with digits after a point