横向
1
Corner point of a polygon
4
Number with digits after a point
5
Result of multiplication
8
Amount of space an object occupies
9
Line segment connecting two circle points
纵向
2
The number representing nothing
3
Math using letters for unknown values
6
Number that divides evenly into another
7
Number divisible only by 1 and itself
10
Part of a whole number
11
Split into equal parts