横向
1
Mathematical rule or equation
4
The number representing nothing
5
Number less than zero
8
Repeated addition
10
Closed shape with straight sides
11
Result of raising a number to an exponent
12
Number greater than zero
纵向
1
Part of a whole number
2
Total distance around a shape
3
U-shaped curve of a quadratic function
6
Rectangular array of numbers
7
System of ordered marks for measuring
9
Exact correspondence on both sides