横向
1
Divisible by two
4
Number divisible only by 1 and itself
8
The number representing nothing
9
Comparison of two quantities
10
Split into equal parts
11
Proven mathematical statement
纵向
2
Number with digits after a point
3
Power to which a number is raised
5
Round shape with all points equidistant
6
Number greater than zero
7
Mathematical statement of equality
12
Number less than zero