横向
1
Symbol representing unknown value
5
Parts per hundred
7
Distance from center to edge of circle
9
Sum divided by count
10
Rectangular array of numbers
纵向
2
Result of multiplication
3
Proven mathematical statement
4
Reference line in a graph
6
Round shape with all points equidistant
8
Math using letters for unknown values
11
Rectangle with four equal sides
12
Number greater than zero