横向
1
Single numeral from 0 to 9
2
Rectangle with four equal sides
4
Number less than zero
5
Reference line in a graph
8
Value that does not change
11
Power to which a number is raised
12
Distance from center to edge of circle
纵向
2
Collection of distinct elements
3
Part of a line with two endpoints
6
Line crossing from corner to corner
7
Number divisible only by 1 and itself
9
Difference between highest and lowest values
10
U-shaped curve of a quadratic function