Across
1
Divisible by two
3
Result of addition
4
Repeated addition
6
Line crossing from corner to corner
7
Mathematical statement of equality
8
Closed shape with straight sides
9
Symbol representing unknown value
10
Collection of distinct elements
Down
2
Line touching circle at one point
3
Rectangle with four equal sides
5
Lines that never intersect
11
Part of a line with two endpoints
12
Number greater than zero