横向
1
Mathematical rule or equation
3
Single numeral from 0 to 9
5
Longest side of a right triangle
7
Comparison of two quantities
8
Math using letters for unknown values
纵向
2
Parts per hundred
3
Split into equal parts
4
Result of addition
6
Part of a line with two endpoints
7
Distance from center to edge of circle
9
Visual representation of data