Across
1
Line touching circle at one point
4
U-shaped curve of a quadratic function
5
Result of raising a number to an exponent
6
Rectangular array of numbers
8
Line crossing from corner to corner
9
Mathematical statement of equality
10
Part of a line with two endpoints
11
Total distance around a shape
Down
2
Mathematical rule or equation
3
Single numeral from 0 to 9
4
Result of multiplication
7
Sum divided by count
12
Parts per hundred