Across
1
U-shaped curve of a quadratic function
3
Single numeral from 0 to 9
4
Proven mathematical statement
9
Divisible by two
11
Parts per hundred
Down
2
Middle value in an ordered dataset
5
Closed shape with straight sides
6
Round shape with all points equidistant
7
Part of a whole number
8
Result of multiplication
10
Mathematical rule or equation