横向
1
Number less than zero
5
Visual representation of data
6
U-shaped curve of a quadratic function
7
Repeated addition
9
Rectangular array of numbers
纵向
2
The number representing nothing
3
Line touching circle at one point
4
Longest side of a right triangle
8
Split into equal parts
10
Steepness of a line
11
Single numeral from 0 to 9