Across
1
Part of a line with two endpoints
5
Number with digits after a point
6
Exact correspondence on both sides
7
Parts per hundred
8
Split into equal parts
9
Math using letters for unknown values
Down
2
Power to which a number is raised
3
Symbol representing unknown value
4
Result of multiplication
10
Middle value in an ordered dataset
11
Line crossing from corner to corner
12
Sum divided by count