Across
1
Number greater than zero
2
Mathematical rule or equation
4
Result of multiplication
5
Rectangle with four equal sides
6
Difference between highest and lowest values
10
Value that does not change
11
Mathematical statement of equality
Down
2
Number that divides evenly into another
3
Round shape with all points equidistant
5
Collection of distinct elements
7
Exact correspondence on both sides
8
Distance from center to edge of circle
9
Rectangular array of numbers