横向
1
Comparison of two quantities
4
Distance from center to edge of circle
5
Symbol representing unknown value
6
Rectangular array of numbers
7
Divisible by two
纵向
2
Result of raising a number to an exponent
3
Part of a line with two endpoints
8
Rectangle with four equal sides
9
Number less than zero
10
Reference line in a graph
11
U-shaped curve of a quadratic function