Across
1
Result of multiplication
5
Number less than zero
6
Power to which a number is raised
8
Result of addition
Down
2
Difference between highest and lowest values
3
System of ordered marks for measuring
4
Middle value in an ordered dataset
7
Part of a circle's circumference
9
Rectangular array of numbers
10
Round shape with all points equidistant
11
Collection of distinct elements
12
Part of a whole number
13
Number divisible only by 1 and itself