横向
1
Closed shape with straight sides
2
Number divisible only by 1 and itself
4
Part of a circle's circumference
5
Power to which a number is raised
纵向
1
Number greater than zero
2
Result of raising a number to an exponent
3
Line segment connecting two circle points
6
Exact correspondence on both sides
7
Divisible by two
8
The number representing nothing