横向
1
Round shape with all points equidistant
5
Mathematical rule or equation
6
Mathematical statement of equality
10
Result of addition
11
System of ordered marks for measuring
纵向
2
Number that divides evenly into another
3
Comparison of two quantities
4
Proven mathematical statement
7
Number with digits after a point
8
Longest side of a right triangle
9
U-shaped curve of a quadratic function
12
Value that does not change
13
Number greater than zero