Across
1
Math using letters for unknown values
5
Number that divides evenly into another
7
Lines that never intersect
9
Result of multiplication
11
Closed shape with straight sides
12
Line crossing from corner to corner
Down
2
Rectangle with four equal sides
3
Number less than zero
4
Visual representation of data
6
Single numeral from 0 to 9
7
Result of raising a number to an exponent
8
The number representing nothing
10
Number greater than zero
11
U-shaped curve of a quadratic function