Across
1
Middle value in an ordered dataset
5
Comparison of two quantities
6
Round shape with all points equidistant
7
Lines that never intersect
8
Amount of space an object occupies
13
Value that does not change
Down
2
Symbol representing unknown value
3
Power to which a number is raised
4
Three-sided polygon
9
Result of raising a number to an exponent
10
Difference between highest and lowest values
11
The number representing nothing
12
Math using letters for unknown values
14
Repeated addition