横向
1
Collection of distinct elements
4
Number with digits after a point
5
Part of a line with two endpoints
6
Middle value in an ordered dataset
7
U-shaped curve of a quadratic function
纵向
2
Divisible by two
3
Power to which a number is raised
8
Math using letters for unknown values
9
Single numeral from 0 to 9
10
Mathematical rule or equation