Across
1
Comparison of two quantities
3
Split into equal parts
5
Reference line in a graph
6
System of ordered marks for measuring
8
Number less than zero
10
Middle value in an ordered dataset
Down
2
Single numeral from 0 to 9
3
Line crossing from corner to corner
4
Space between two intersecting lines
6
Steepness of a line
7
Rectangle with four equal sides
9
Amount of space an object occupies
11
Sum divided by count