横向
1
Exact correspondence on both sides
3
Parts per hundred
5
Line touching circle at one point
7
Line crossing from corner to corner
12
Collection of distinct elements
13
Middle value in an ordered dataset
纵向
2
Result of raising a number to an exponent
3
U-shaped curve of a quadratic function
4
Divisible by two
6
Value that does not change
8
Line segment connecting two circle points
9
Result of multiplication
10
Math using letters for unknown values
11
Number that divides evenly into another