Across
1
Corner point of a polygon
2
Sum divided by count
3
Divisible by two
5
U-shaped curve of a quadratic function
7
Part of a whole number
Down
1
Symbol representing unknown value
2
Reference line in a graph
4
Parts per hundred
6
Number less than zero
8
Difference between highest and lowest values
9
Rectangular array of numbers
10
Result of raising a number to an exponent