Across
1
Mathematical rule or equation
5
Math using letters for unknown values
8
Sum divided by count
9
Line crossing from corner to corner
11
Mathematical statement of equality
Down
1
Part of a whole number
2
Part of a circle's circumference
3
Result of addition
4
Line touching circle at one point
6
Number with digits after a point
7
Symbol representing unknown value
10
Rectangle with four equal sides