Across
1
Number less than zero
6
Result of addition
7
Lines that never intersect
8
Number with digits after a point
9
Part of a line with two endpoints
10
Exact correspondence on both sides
13
Result of raising a number to an exponent
Down
2
Single numeral from 0 to 9
3
Mathematical statement of equality
4
Proven mathematical statement
5
Longest side of a right triangle
11
Round shape with all points equidistant
12
Split into equal parts