横向
1
Single numeral from 0 to 9
4
Math using letters for unknown values
7
Parts per hundred
纵向
2
Comparison of two quantities
3
Corner point of a polygon
5
Proven mathematical statement
6
Three-sided polygon
8
Mathematical rule or equation
Single numeral from 0 to 9
Math using letters for unknown values
Parts per hundred
Comparison of two quantities
Corner point of a polygon
Proven mathematical statement
Three-sided polygon
Mathematical rule or equation