横向
1
Power to which a number is raised
4
Line crossing from corner to corner
5
Reference line in a graph
纵向
2
Exact correspondence on both sides
3
Amount of space an object occupies
4
Single numeral from 0 to 9
6
Math using letters for unknown values
7
Steepness of a line
8
Value that does not change
9
Mathematical statement of equality