Across
1
Parts per hundred
2
Exact correspondence on both sides
4
Split into equal parts
5
Space between two intersecting lines
7
Round shape with all points equidistant
10
Longest side of a right triangle
11
Repeated addition
12
Number with digits after a point
Down
1
Closed shape with straight sides
2
System of ordered marks for measuring
3
Middle value in an ordered dataset
6
Difference between highest and lowest values
8
Single numeral from 0 to 9
9
Result of raising a number to an exponent