Across
1
Distance from center to edge of circle
3
Parts per hundred
5
Result of addition
6
Longest side of a right triangle
10
The number representing nothing
11
Number less than zero
Down
2
Number that divides evenly into another
4
Number greater than zero
5
System of ordered marks for measuring
7
Line crossing from corner to corner
8
Single numeral from 0 to 9
9
Line touching circle at one point
12
Amount of space an object occupies