Across
1
Corner point of a polygon
3
Comparison of two quantities
6
Parts per hundred
7
Steepness of a line
8
Difference between highest and lowest values
10
Closed shape with straight sides
Down
2
Result of multiplication
4
Math using letters for unknown values
5
Number divisible only by 1 and itself
9
The number representing nothing
11
Number with digits after a point
12
Number greater than zero