Across
1
Mathematical statement of equality
3
Divisible by two
5
Round shape with all points equidistant
7
Rectangular array of numbers
9
Result of raising a number to an exponent
10
Closed shape with straight sides
11
Reference line in a graph
13
Parts per hundred
Down
2
Number greater than zero
3
Power to which a number is raised
4
Space between two intersecting lines
6
The number representing nothing
8
Distance from center to edge of circle
12
Part of a whole number