Across
1
Sum divided by count
6
Difference between highest and lowest values
7
Single numeral from 0 to 9
8
Space between two intersecting lines
10
Total distance around a shape
Down
2
Steepness of a line
3
Number that divides evenly into another
4
System of ordered marks for measuring
5
Power to which a number is raised
9
Round shape with all points equidistant