横向
1
Parts per hundred
4
Round shape with all points equidistant
5
Sum divided by count
6
Space between two intersecting lines
9
Collection of distinct elements
13
Number divisible only by 1 and itself
14
Amount of space an object occupies
纵向
2
Proven mathematical statement
3
Mathematical statement of equality
7
Divisible by two
8
Difference between highest and lowest values
10
Corner point of a polygon
11
Number greater than zero
12
Part of a whole number
15
The number representing nothing