Across
1
Corner point of a polygon
4
Math using letters for unknown values
5
Difference between highest and lowest values
6
Closed shape with straight sides
10
Mathematical statement of equality
12
Result of raising a number to an exponent
13
Middle value in an ordered dataset
Down
2
Rectangular array of numbers
3
Longest side of a right triangle
5
Comparison of two quantities
7
Number that divides evenly into another
8
Divisible by two
9
Number greater than zero
11
Repeated addition