Across
1
Math using letters for unknown values
4
Result of addition
5
Single numeral from 0 to 9
6
Line crossing from corner to corner
10
Number divisible only by 1 and itself
Down
2
Line segment connecting two circle points
3
Closed shape with straight sides
4
Rectangle with four equal sides
7
Symbol representing unknown value
8
Visual representation of data
9
Part of a circle's circumference
11
Split into equal parts