Across
1
Sum divided by count
5
Math using letters for unknown values
6
Split into equal parts
7
Line touching circle at one point
9
Distance from center to edge of circle
12
Exact correspondence on both sides
Down
2
System of ordered marks for measuring
3
Result of raising a number to an exponent
4
Closed shape with straight sides
8
Number with digits after a point
10
Total distance around a shape
11
Mathematical rule or equation