横向
1
Single numeral from 0 to 9
3
Divisible by two
6
Number less than zero
7
Amount of space an object occupies
8
Three-sided polygon
9
Collection of distinct elements
纵向
2
Number greater than zero
4
Power to which a number is raised
5
Space between two intersecting lines
10
Mathematical statement of equality
11
Rectangle with four equal sides
12
Part of a line with two endpoints
13
Result of addition