Across
1
Reference line in a graph
3
Number greater than zero
4
Divisible by two
6
Number that divides evenly into another
8
Line crossing from corner to corner
9
Rectangular array of numbers
11
The number representing nothing
13
Total distance around a shape
14
Difference between highest and lowest values
Down
2
Split into equal parts
3
Number divisible only by 1 and itself
5
Space between two intersecting lines
7
Result of multiplication
10
Parts per hundred
12
Three-sided polygon