Across
1
Comparison of two quantities
3
Split into equal parts
4
Total distance around a shape
6
Space between two intersecting lines
8
Rectangle with four equal sides
9
Exact correspondence on both sides
Down
1
Difference between highest and lowest values
2
Part of a line with two endpoints
5
Number greater than zero
7
The number representing nothing
10
Parts per hundred
11
Number with digits after a point