Across
1
Sum divided by count
4
Round shape with all points equidistant
5
Power to which a number is raised
7
Single numeral from 0 to 9
11
Rectangle with four equal sides
Down
2
Exact correspondence on both sides
3
Number divisible only by 1 and itself
6
Lines that never intersect
8
Middle value in an ordered dataset
9
Comparison of two quantities
10
Mathematical rule or equation