Across
1
Parts per hundred
5
Repeated addition
6
Number less than zero
7
U-shaped curve of a quadratic function
8
Line touching circle at one point
Down
2
Collection of distinct elements
3
Longest side of a right triangle
4
Power to which a number is raised
5
Rectangular array of numbers
9
Sum divided by count
10
Number that divides evenly into another
11
Closed shape with straight sides
12
Single numeral from 0 to 9
13
Symbol representing unknown value
14
Proven mathematical statement