横向
1
Mathematical rule or equation
5
Steepness of a line
6
Symbol representing unknown value
8
Sum divided by count
9
Value that does not change
12
Rectangular array of numbers
纵向
2
Repeated addition
3
Power to which a number is raised
4
Space between two intersecting lines
7
Line segment connecting two circle points
10
Result of addition
11
Parts per hundred