Across
1
Line crossing from corner to corner
5
Difference between highest and lowest values
6
Proven mathematical statement
7
Split into equal parts
9
Result of multiplication
12
Symbol representing unknown value
14
Part of a whole number
Down
2
Number divisible only by 1 and itself
3
Longest side of a right triangle
4
Middle value in an ordered dataset
8
Number that divides evenly into another
10
Round shape with all points equidistant
11
Three-sided polygon
13
Divisible by two