Across
1
Parts per hundred
4
Number greater than zero
6
Sum divided by count
9
Middle value in an ordered dataset
Down
2
Steepness of a line
3
Line crossing from corner to corner
5
Math using letters for unknown values
7
Value that does not change
8
Line touching circle at one point
10
Difference between highest and lowest values
11
Split into equal parts
12
Rectangular array of numbers
13
Rectangle with four equal sides