Across
1
Round shape with all points equidistant
2
Closed shape with straight sides
5
Reference line in a graph
6
Corner point of a polygon
7
Number that divides evenly into another
11
Part of a line with two endpoints
Down
2
Result of raising a number to an exponent
3
Math using letters for unknown values
4
Part of a whole number
8
Repeated addition
9
Single numeral from 0 to 9
10
Number greater than zero