Across
1
Number that divides evenly into another
4
Line crossing from corner to corner
5
Mathematical rule or equation
6
Round shape with all points equidistant
10
Total distance around a shape
Down
2
Number less than zero
3
Closed shape with straight sides
7
Mathematical statement of equality
8
The number representing nothing
9
Split into equal parts
11
Number with digits after a point
12
Middle value in an ordered dataset