Across
1
Exact correspondence on both sides
5
Parts per hundred
6
Number less than zero
10
Mathematical rule or equation
12
Sum divided by count
13
Power to which a number is raised
Down
1
System of ordered marks for measuring
2
Divisible by two
3
The number representing nothing
4
Number with digits after a point
7
Difference between highest and lowest values
8
Mathematical statement of equality
9
Three-sided polygon
11
Middle value in an ordered dataset
14
Number greater than zero