横向
1
Mathematical statement of equality
5
Total distance around a shape
6
Space between two intersecting lines
8
Number that divides evenly into another
9
Math using letters for unknown values
11
Reference line in a graph
12
Part of a whole number
纵向
2
Sum divided by count
3
Exact correspondence on both sides
4
Comparison of two quantities
5
Result of multiplication
7
U-shaped curve of a quadratic function
10
Amount of space an object occupies
13
Number greater than zero