横向
1
Exact correspondence on both sides
4
Mathematical statement of equality
7
Single numeral from 0 to 9
8
Proven mathematical statement
9
Divisible by two
10
Result of addition
纵向
2
Middle value in an ordered dataset
3
Number divisible only by 1 and itself
5
Rectangular array of numbers
6
Number greater than zero
10
Part of a line with two endpoints