Across
1
Line crossing from corner to corner
2
Result of addition
5
Rectangular array of numbers
7
Mathematical rule or equation
8
Total distance around a shape
11
Round shape with all points equidistant
Down
1
Number with digits after a point
3
Part of a whole number
4
Part of a line with two endpoints
6
Comparison of two quantities
9
Closed shape with straight sides
10
Divisible by two
12
Reference line in a graph