横向
1
Result of multiplication
2
Part of a line with two endpoints
4
Number less than zero
7
U-shaped curve of a quadratic function
纵向
2
Collection of distinct elements
3
Mathematical rule or equation
5
Part of a whole number
6
Lines that never intersect
8
Longest side of a right triangle
9
Result of addition
10
Visual representation of data
11
Number with digits after a point