Across
1
System of ordered marks for measuring
2
Number divisible only by 1 and itself
4
Part of a circle's circumference
7
Value that does not change
8
Number greater than zero
Down
2
Result of raising a number to an exponent
3
Line segment connecting two circle points
5
Middle value in an ordered dataset
6
Power to which a number is raised
9
Mathematical statement of equality
10
Reference line in a graph
11
Math using letters for unknown values