Across
1
Sum divided by count
5
Total distance around a shape
6
Part of a line with two endpoints
7
Power to which a number is raised
8
Closed shape with straight sides
9
Distance from center to edge of circle
Down
2
Number less than zero
3
Number greater than zero
4
Single numeral from 0 to 9
5
Result of raising a number to an exponent
10
Middle value in an ordered dataset
11
The number representing nothing