Across
1
Mathematical rule or equation
3
Power to which a number is raised
8
Repeated addition
9
Result of addition
10
Math using letters for unknown values
11
Rectangular array of numbers
12
Distance from center to edge of circle
13
Corner point of a polygon
Down
2
Sum divided by count
4
Number divisible only by 1 and itself
5
Part of a line with two endpoints
6
Single numeral from 0 to 9
7
U-shaped curve of a quadratic function
14
Lines that never intersect