Across
1
Mathematical rule or equation
4
Corner point of a polygon
7
Result of addition
8
Result of multiplication
9
Number that divides evenly into another
10
Number with digits after a point
11
Divisible by two
Down
2
Proven mathematical statement
3
Middle value in an ordered dataset
5
Repeated addition
6
Lines that never intersect
12
Number less than zero
13
Part of a circle's circumference