横向
1
Lines that never intersect
5
Round shape with all points equidistant
6
Parts per hundred
8
Single numeral from 0 to 9
9
Part of a line with two endpoints
11
Mathematical statement of equality
纵向
1
Number divisible only by 1 and itself
2
Divisible by two
3
Math using letters for unknown values
4
Visual representation of data
7
Power to which a number is raised
10
Proven mathematical statement