Across
1
System of ordered marks for measuring
4
U-shaped curve of a quadratic function
5
Result of raising a number to an exponent
7
Single numeral from 0 to 9
8
Sum divided by count
9
The number representing nothing
Down
1
Rectangle with four equal sides
2
Difference between highest and lowest values
3
Power to which a number is raised
6
Math using letters for unknown values
10
Comparison of two quantities