Across
1
Difference between highest and lowest values
4
Number that divides evenly into another
5
Visual representation of data
6
Line touching circle at one point
7
System of ordered marks for measuring
11
Round shape with all points equidistant
Down
2
Line crossing from corner to corner
3
Symbol representing unknown value
8
Number greater than zero
9
Mathematical statement of equality
10
Part of a line with two endpoints