Across
1
Rectangular array of numbers
4
Sum divided by count
9
Corner point of a polygon
11
U-shaped curve of a quadratic function
Down
2
Number with digits after a point
3
Number less than zero
5
Split into equal parts
6
Difference between highest and lowest values
7
Value that does not change
8
Amount of space an object occupies
10
System of ordered marks for measuring