Across
1
Single numeral from 0 to 9
4
Comparison of two quantities
5
The number representing nothing
6
Part of a line with two endpoints
11
Symbol representing unknown value
Down
2
Distance from center to edge of circle
3
Rectangular array of numbers
7
Parts per hundred
8
Mathematical statement of equality
9
Visual representation of data
10
Number divisible only by 1 and itself