Across
1
Exact correspondence on both sides
5
Symbol representing unknown value
6
Part of a whole number
9
Visual representation of data
Down
2
Rectangular array of numbers
3
Lines that never intersect
4
The number representing nothing
5
Amount of space an object occupies
7
Difference between highest and lowest values
8
Number divisible only by 1 and itself
10
Proven mathematical statement
11
Distance from center to edge of circle