Across
1
Number less than zero
5
Proven mathematical statement
9
Sum divided by count
10
Value that does not change
12
Part of a circle's circumference
13
Line touching circle at one point
14
Rectangular array of numbers
Down
2
Divisible by two
3
Amount of space an object occupies
4
Number with digits after a point
6
Symbol representing unknown value
7
Power to which a number is raised
8
Result of multiplication
11
Line crossing from corner to corner