Across
1
Math using letters for unknown values
3
Result of addition
5
Amount of space an object occupies
7
Difference between highest and lowest values
8
Number divisible only by 1 and itself
9
Number that divides evenly into another
11
Collection of distinct elements
Down
2
Distance from center to edge of circle
3
Rectangle with four equal sides
4
Comparison of two quantities
6
Power to which a number is raised
10
Mathematical statement of equality