Across
1
Result of addition
3
Comparison of two quantities
5
Number divisible only by 1 and itself
6
Number less than zero
8
Result of multiplication
9
Symbol representing unknown value
10
Divisible by two
11
Single numeral from 0 to 9
Down
2
Reference line in a graph
4
Power to which a number is raised
5
Number greater than zero
7
Part of a line with two endpoints