Across
1
Part of a whole number
2
Middle value in an ordered dataset
5
Math using letters for unknown values
6
Exact correspondence on both sides
7
Number greater than zero
9
Rectangular array of numbers
Down
1
Number that divides evenly into another
2
Repeated addition
3
Three-sided polygon
4
Value that does not change
6
Steepness of a line
8
Divisible by two
10
Proven mathematical statement