Across
1
Difference between highest and lowest values
2
Single numeral from 0 to 9
3
Reference line in a graph
4
Rectangle with four equal sides
5
Middle value in an ordered dataset
8
Result of raising a number to an exponent
9
Power to which a number is raised
Down
2
Number with digits after a point
3
Space between two intersecting lines
4
Exact correspondence on both sides
6
Part of a whole number
7
Amount of space an object occupies