Across
1
Symbol representing unknown value
3
System of ordered marks for measuring
5
Round shape with all points equidistant
6
Number greater than zero
8
Part of a whole number
9
Comparison of two quantities
10
Visual representation of data
Down
2
Part of a circle's circumference
3
Part of a line with two endpoints
4
Number divisible only by 1 and itself
7
Line crossing from corner to corner
11
Number that divides evenly into another