横向
1
Result of multiplication
4
U-shaped curve of a quadratic function
7
Total distance around a shape
8
Result of addition
9
Steepness of a line
11
Three-sided polygon
纵向
2
Single numeral from 0 to 9
3
Sum divided by count
5
Math using letters for unknown values
6
Repeated addition
10
System of ordered marks for measuring