Across
1
Part of a line with two endpoints
6
Difference between highest and lowest values
7
Longest side of a right triangle
8
Single numeral from 0 to 9
9
Middle value in an ordered dataset
12
Part of a whole number
13
Comparison of two quantities
Down
2
Split into equal parts
3
Proven mathematical statement
4
Mathematical statement of equality
5
Three-sided polygon
10
Line crossing from corner to corner
11
Number with digits after a point