Across
1
Parts per hundred
5
Number with digits after a point
6
Visual representation of data
7
Three-sided polygon
8
System of ordered marks for measuring
12
Proven mathematical statement
Down
1
Number divisible only by 1 and itself
2
Difference between highest and lowest values
3
Single numeral from 0 to 9
4
Exact correspondence on both sides
9
Number less than zero
10
Collection of distinct elements
11
Rectangle with four equal sides