Across
1
Parts per hundred
4
Split into equal parts
6
Number with digits after a point
7
Math using letters for unknown values
9
Space between two intersecting lines
11
Mathematical rule or equation
Down
2
Middle value in an ordered dataset
3
Symbol representing unknown value
5
Single numeral from 0 to 9
8
Part of a circle's circumference
10
Difference between highest and lowest values