Across
1
Parts per hundred
3
Mathematical rule or equation
6
Number divisible only by 1 and itself
7
Total distance around a shape
Down
2
Comparison of two quantities
4
Amount of space an object occupies
5
Three-sided polygon
8
Reference line in a graph
9
Divisible by two
10
Single numeral from 0 to 9
11
Part of a line with two endpoints