Across
1
Number divisible only by 1 and itself
4
Comparison of two quantities
5
Value that does not change
6
Split into equal parts
9
Mathematical rule or equation
12
The number representing nothing
13
Proven mathematical statement
14
System of ordered marks for measuring
Down
2
Middle value in an ordered dataset
3
Round shape with all points equidistant
7
Line crossing from corner to corner
8
Exact correspondence on both sides
9
Part of a whole number
10
Number less than zero
11
Part of a line with two endpoints