Across
1
Collection of distinct elements
3
Line crossing from corner to corner
4
Mathematical rule or equation
6
Parts per hundred
9
Power to which a number is raised
11
Line touching circle at one point
Down
2
Repeated addition
5
Mathematical statement of equality
7
Part of a whole number
8
Steepness of a line
10
Reference line in a graph
12
Longest side of a right triangle