Across
1
Sum divided by count
5
Result of raising a number to an exponent
6
Exact correspondence on both sides
7
Parts per hundred
8
Power to which a number is raised
9
Single numeral from 0 to 9
Down
2
Line crossing from corner to corner
3
Part of a whole number
4
Three-sided polygon
7
Closed shape with straight sides
10
The number representing nothing
11
Distance from center to edge of circle