横向
1
Exact correspondence on both sides
5
Mathematical statement of equality
6
Sum divided by count
9
Divisible by two
纵向
1
Result of addition
2
Result of raising a number to an exponent
3
Number with digits after a point
4
Math using letters for unknown values
7
Longest side of a right triangle
8
System of ordered marks for measuring
10
Visual representation of data
11
Line touching circle at one point