Across
1
Parts per hundred
4
Number with digits after a point
6
Single numeral from 0 to 9
7
Total distance around a shape
8
Part of a circle's circumference
9
Middle value in an ordered dataset
Down
1
Closed shape with straight sides
2
Round shape with all points equidistant
3
Math using letters for unknown values
5
Number that divides evenly into another
10
Rectangular array of numbers
11
Symbol representing unknown value