Across
1
Amount of space an object occupies
3
Comparison of two quantities
6
Reference line in a graph
7
Collection of distinct elements
8
Single numeral from 0 to 9
9
Number with digits after a point
11
Parts per hundred
Down
2
Power to which a number is raised
4
Space between two intersecting lines
5
Three-sided polygon
10
Middle value in an ordered dataset
12
Rectangular array of numbers