Across
1
Parts per hundred
5
Reference line in a graph
6
Number with digits after a point
7
Single numeral from 0 to 9
8
Space between two intersecting lines
9
Repeated addition
10
Longest side of a right triangle
Down
1
Closed shape with straight sides
2
Amount of space an object occupies
3
Proven mathematical statement
4
Number that divides evenly into another