Across
1
Result of multiplication
3
Lines that never intersect
5
Rectangle with four equal sides
7
Power to which a number is raised
8
Value that does not change
9
Result of raising a number to an exponent
10
Line crossing from corner to corner
11
Mathematical statement of equality
Down
2
Rectangular array of numbers
4
Number less than zero
6
Line touching circle at one point
12
The number representing nothing