横向
1
System of ordered marks for measuring
2
Middle value in an ordered dataset
3
Math using letters for unknown values
8
U-shaped curve of a quadratic function
10
Total distance around a shape
11
Symbol representing unknown value
纵向
2
Repeated addition
4
Longest side of a right triangle
5
Mathematical statement of equality
6
Part of a whole number
7
Mathematical rule or equation
9
Sum divided by count