Across
1
Power to which a number is raised
3
Single numeral from 0 to 9
6
Closed shape with straight sides
7
Number greater than zero
8
The number representing nothing
10
Corner point of a polygon
Down
2
Result of raising a number to an exponent
3
Split into equal parts
4
Number that divides evenly into another
5
Proven mathematical statement
9
Repeated addition
11
Round shape with all points equidistant