Across
1
Result of raising a number to an exponent
3
Closed shape with straight sides
4
Part of a circle's circumference
6
Reference line in a graph
7
Rectangle with four equal sides
8
Divisible by two
10
Repeated addition
11
Difference between highest and lowest values
Down
1
Parts per hundred
2
Number less than zero
5
Mathematical rule or equation
9
Middle value in an ordered dataset