Across
1
Result of raising a number to an exponent
4
Difference between highest and lowest values
5
Line segment connecting two circle points
6
Reference line in a graph
7
Parts per hundred
8
System of ordered marks for measuring
9
Number divisible only by 1 and itself
10
Amount of space an object occupies
Down
1
Closed shape with straight sides
2
The number representing nothing
3
Longest side of a right triangle
6
Sum divided by count
11
Corner point of a polygon
12
Single numeral from 0 to 9