Across
1
Parts per hundred
4
Sum divided by count
5
Math using letters for unknown values
11
Steepness of a line
Down
1
Number divisible only by 1 and itself
2
Result of multiplication
3
Number with digits after a point
6
Three-sided polygon
7
Divisible by two
8
Middle value in an ordered dataset
9
Round shape with all points equidistant
10
Collection of distinct elements
12
Number greater than zero