横向
1
Number greater than zero
5
Power to which a number is raised
6
Sum divided by count
9
Math using letters for unknown values
纵向
2
Proven mathematical statement
3
Result of multiplication
4
Number less than zero
7
The number representing nothing
8
Mathematical rule or equation
10
Comparison of two quantities
11
Number with digits after a point
12
Line crossing from corner to corner