Across
1
Parts per hundred
5
Sum divided by count
6
Number divisible only by 1 and itself
7
Symbol representing unknown value
8
Proven mathematical statement
Down
2
Part of a whole number
3
Steepness of a line
4
Power to which a number is raised
9
Line crossing from corner to corner
10
Mathematical rule or equation
11
U-shaped curve of a quadratic function
12
Closed shape with straight sides