横向
1
Repeated addition
5
Value that does not change
6
Collection of distinct elements
8
Visual representation of data
10
Number divisible only by 1 and itself
12
Number with digits after a point
纵向
2
Three-sided polygon
3
Reference line in a graph
4
Part of a line with two endpoints
7
Power to which a number is raised
9
Number less than zero
11
Distance from center to edge of circle
13
Mathematical rule or equation