横向
1
Repeated addition
3
Line touching circle at one point
4
Divisible by two
6
Proven mathematical statement
8
Math using letters for unknown values
10
Closed shape with straight sides
11
Amount of space an object occupies
纵向
2
Lines that never intersect
5
Number divisible only by 1 and itself
7
Steepness of a line
9
Power to which a number is raised