Across
1
Symbol representing unknown value
2
Part of a line with two endpoints
4
Rectangular array of numbers
6
Power to which a number is raised
8
Middle value in an ordered dataset
Down
2
Collection of distinct elements
3
Value that does not change
4
Repeated addition
5
Corner point of a polygon
7
Space between two intersecting lines
9
Number divisible only by 1 and itself
10
Number with digits after a point
11
Single numeral from 0 to 9