Across
1
Rectangle with four equal sides
4
Number that divides evenly into another
5
Middle value in an ordered dataset
6
Line crossing from corner to corner
7
Difference between highest and lowest values
8
Steepness of a line
9
Result of multiplication
Down
1
System of ordered marks for measuring
2
Sum divided by count
3
Number greater than zero
10
Result of raising a number to an exponent
11
The number representing nothing
12
Number less than zero