Across
1
Part of a whole number
5
Collection of distinct elements
6
Number greater than zero
8
Distance from center to edge of circle
9
Mathematical statement of equality
11
Math using letters for unknown values
13
Difference between highest and lowest values
Down
2
Power to which a number is raised
3
Exact correspondence on both sides
4
Middle value in an ordered dataset
6
U-shaped curve of a quadratic function
7
Rectangle with four equal sides
10
Symbol representing unknown value
12
System of ordered marks for measuring
14
Single numeral from 0 to 9