横向
1
Total distance around a shape
3
Line crossing from corner to corner
8
Math using letters for unknown values
12
Visual representation of data
纵向
1
Result of multiplication
2
Repeated addition
3
Single numeral from 0 to 9
4
Symbol representing unknown value
5
Distance from center to edge of circle
6
Number greater than zero
7
U-shaped curve of a quadratic function
9
Divisible by two
10
Round shape with all points equidistant
11
Proven mathematical statement