Across
1
Number with digits after a point
4
Part of a circle's circumference
5
Symbol representing unknown value
6
Space between two intersecting lines
7
Parts per hundred
9
Mathematical statement of equality
12
U-shaped curve of a quadratic function
Down
1
Line crossing from corner to corner
2
Steepness of a line
3
Sum divided by count
4
Reference line in a graph
8
Distance from center to edge of circle
10
Math using letters for unknown values
11
Result of multiplication