Across
1
Number less than zero
6
Comparison of two quantities
7
Collection of distinct elements
8
Divisible by two
9
Result of addition
10
Closed shape with straight sides
15
Split into equal parts
Down
2
Line touching circle at one point
3
Longest side of a right triangle
4
Single numeral from 0 to 9
5
Steepness of a line
11
Value that does not change
12
Repeated addition
13
Part of a line with two endpoints
14
Middle value in an ordered dataset