横向
1
Part of a circle's circumference
2
Difference between highest and lowest values
3
Number less than zero
4
U-shaped curve of a quadratic function
6
Closed shape with straight sides
8
Sum divided by count
9
Comparison of two quantities
纵向
1
Math using letters for unknown values
5
Middle value in an ordered dataset
6
Result of multiplication
7
Visual representation of data