Across
1
Single numeral from 0 to 9
4
Math using letters for unknown values
5
Value that does not change
7
Power to which a number is raised
Down
2
Visual representation of data
3
Number less than zero
6
Lines that never intersect
8
Middle value in an ordered dataset
9
Repeated addition
10
Three-sided polygon
11
Line segment connecting two circle points
12
Part of a whole number