横向
1
Comparison of two quantities
5
Collection of distinct elements
6
Sum divided by count
7
U-shaped curve of a quadratic function
8
Proven mathematical statement
10
Divisible by two
纵向
2
Symbol representing unknown value
3
Number greater than zero
4
Number that divides evenly into another
7
Lines that never intersect
9
Amount of space an object occupies
11
Number with digits after a point