Across
1
The number representing nothing
3
Difference between highest and lowest values
6
Middle value in an ordered dataset
7
System of ordered marks for measuring
8
Power to which a number is raised
9
Mathematical statement of equality
11
Distance from center to edge of circle
Down
2
Parts per hundred
4
Number greater than zero
5
Part of a whole number
10
Split into equal parts
12
Symbol representing unknown value