Across
1
Middle value in an ordered dataset
3
Single numeral from 0 to 9
4
Corner point of a polygon
5
Number that divides evenly into another
7
Rectangle with four equal sides
8
U-shaped curve of a quadratic function
9
Distance from center to edge of circle
Down
1
Rectangular array of numbers
2
Part of a whole number
3
Line crossing from corner to corner
4
Symbol representing unknown value
6
Total distance around a shape