横向
1
Proven mathematical statement
2
Steepness of a line
6
Single numeral from 0 to 9
8
System of ordered marks for measuring
9
Closed shape with straight sides
11
Math using letters for unknown values
纵向
2
Part of a line with two endpoints
3
Number greater than zero
4
Visual representation of data
5
Rectangular array of numbers
7
Collection of distinct elements
10
Amount of space an object occupies
12
U-shaped curve of a quadratic function