横向
1
Space between two intersecting lines
3
Result of addition
4
Power to which a number is raised
5
Line segment connecting two circle points
6
Amount of space an object occupies
8
The number representing nothing
纵向
1
Sum divided by count
2
Closed shape with straight sides
3
Part of a line with two endpoints
7
System of ordered marks for measuring
9
Mathematical statement of equality