Across
1
Single numeral from 0 to 9
2
Result of raising a number to an exponent
4
Reference line in a graph
5
Number less than zero
7
Mathematical statement of equality
8
Line segment connecting two circle points
Down
1
Split into equal parts
2
Number divisible only by 1 and itself
3
Total distance around a shape
6
Part of a whole number
9
Rectangular array of numbers
10
Mathematical rule or equation
11
Closed shape with straight sides