Across
1
Result of multiplication
4
Divisible by two
6
Number divisible only by 1 and itself
7
Number greater than zero
8
Round shape with all points equidistant
Down
2
Middle value in an ordered dataset
3
Steepness of a line
5
Repeated addition
9
Part of a circle's circumference
10
Number less than zero
11
Symbol representing unknown value
12
Lines that never intersect