Across
1
Reference line in a graph
2
Total distance around a shape
5
Number that divides evenly into another
7
Number less than zero
11
Round shape with all points equidistant
12
Value that does not change
Down
2
Number greater than zero
3
Comparison of two quantities
4
Sum divided by count
6
Result of raising a number to an exponent
8
U-shaped curve of a quadratic function
9
Repeated addition
10
Proven mathematical statement