Across
1
Line touching circle at one point
6
Middle value in an ordered dataset
7
Split into equal parts
8
Part of a whole number
9
The number representing nothing
10
Reference line in a graph
13
Steepness of a line
14
Distance from center to edge of circle
15
Difference between highest and lowest values
Down
2
Sum divided by count
3
Value that does not change
4
Number that divides evenly into another
5
Three-sided polygon
11
Single numeral from 0 to 9
12
Amount of space an object occupies