Across
1
Result of raising a number to an exponent
4
Part of a circle's circumference
5
Part of a line with two endpoints
7
Reference line in a graph
8
Difference between highest and lowest values
9
Split into equal parts
10
Sum divided by count
11
Mathematical rule or equation
13
Rectangular array of numbers
Down
2
Number that divides evenly into another
3
Three-sided polygon
5
System of ordered marks for measuring
6
Comparison of two quantities
12
Symbol representing unknown value