横向
1
Line crossing from corner to corner
4
Rectangle with four equal sides
5
U-shaped curve of a quadratic function
6
Result of multiplication
12
Middle value in an ordered dataset
纵向
2
The number representing nothing
3
Rectangular array of numbers
4
Steepness of a line
5
Parts per hundred
7
Mathematical rule or equation
8
Total distance around a shape
9
Proven mathematical statement
10
Number with digits after a point
11
Visual representation of data