Across
1
Result of raising a number to an exponent
2
Middle value in an ordered dataset
4
Result of addition
5
Difference between highest and lowest values
6
Total distance around a shape
7
Power to which a number is raised
8
Exact correspondence on both sides
Down
2
Rectangular array of numbers
3
Longest side of a right triangle
9
Symbol representing unknown value
10
Repeated addition
11
Mathematical rule or equation
12
Parts per hundred