Across
1
Mathematical statement of equality
6
Math using letters for unknown values
7
Comparison of two quantities
8
Distance from center to edge of circle
9
Split into equal parts
10
The number representing nothing
12
Divisible by two
Down
2
Part of a line with two endpoints
3
Total distance around a shape
4
Result of addition
5
Parts per hundred
11
Number with digits after a point