Across
1
Repeated addition
5
Parts per hundred
6
Single numeral from 0 to 9
7
The number representing nothing
8
Sum divided by count
9
Middle value in an ordered dataset
11
Visual representation of data
Down
2
Line touching circle at one point
3
Math using letters for unknown values
4
Number with digits after a point
5
Lines that never intersect
10
Result of addition
12
Number that divides evenly into another
13
Closed shape with straight sides