横向
1
Total distance around a shape
6
The number representing nothing
7
Line crossing from corner to corner
8
Symbol representing unknown value
11
Divisible by two
纵向
2
System of ordered marks for measuring
3
Difference between highest and lowest values
4
Collection of distinct elements
5
Mathematical rule or equation
9
Visual representation of data
10
Reference line in a graph
12
Amount of space an object occupies
13
Middle value in an ordered dataset
14
Longest side of a right triangle