Across
1
Rectangular array of numbers
2
Closed shape with straight sides
6
Result of multiplication
8
Parts per hundred
9
Number with digits after a point
11
Repeated addition
12
Result of addition
13
Difference between highest and lowest values
Down
1
Middle value in an ordered dataset
3
Proven mathematical statement
4
Part of a whole number
5
Mathematical statement of equality
7
Line crossing from corner to corner
10
Number greater than zero