Across
1
Part of a whole number
5
Corner point of a polygon
7
Math using letters for unknown values
8
U-shaped curve of a quadratic function
10
Single numeral from 0 to 9
Down
1
Mathematical rule or equation
2
Line crossing from corner to corner
3
Repeated addition
4
Middle value in an ordered dataset
6
Rectangular array of numbers
9
Three-sided polygon