Across
1
Parts per hundred
5
Line crossing from corner to corner
6
Result of raising a number to an exponent
7
Single numeral from 0 to 9
9
Comparison of two quantities
11
Number less than zero
13
Visual representation of data
Down
2
Power to which a number is raised
3
Closed shape with straight sides
4
Part of a whole number
8
Three-sided polygon
10
The number representing nothing
12
Number divisible only by 1 and itself