横向
1
Line touching circle at one point
5
Mathematical rule or equation
6
Power to which a number is raised
7
Difference between highest and lowest values
10
Result of addition
11
The number representing nothing
纵向
2
Number greater than zero
3
Collection of distinct elements
4
Part of a line with two endpoints
5
Part of a whole number
8
Number less than zero
9
Mathematical statement of equality
12
Number that divides evenly into another