Across
1
Proven mathematical statement
5
Mathematical rule or equation
6
Parts per hundred
7
Round shape with all points equidistant
8
Reference line in a graph
10
Divisible by two
Down
2
Collection of distinct elements
3
Comparison of two quantities
4
The number representing nothing
6
Lines that never intersect
9
Power to which a number is raised
11
System of ordered marks for measuring
12
Rectangular array of numbers