Across
1
Middle value in an ordered dataset
5
Longest side of a right triangle
6
Parts per hundred
7
Mathematical statement of equality
13
Difference between highest and lowest values
Down
2
Single numeral from 0 to 9
3
Lines that never intersect
4
Three-sided polygon
8
Amount of space an object occupies
9
Repeated addition
10
Result of addition
11
Collection of distinct elements
12
Exact correspondence on both sides
14
Split into equal parts