横向
1
Number greater than zero
5
Closed shape with straight sides
6
Rectangular array of numbers
7
Reference line in a graph
8
Longest side of a right triangle
9
U-shaped curve of a quadratic function
纵向
1
Number divisible only by 1 and itself
2
Number less than zero
3
System of ordered marks for measuring
4
Number with digits after a point
10
The number representing nothing
11
Divisible by two