横向
1
U-shaped curve of a quadratic function
4
Single numeral from 0 to 9
5
Parts per hundred
纵向
2
Amount of space an object occupies
3
Comparison of two quantities
6
Part of a circle's circumference
7
Math using letters for unknown values
8
Distance from center to edge of circle
9
Exact correspondence on both sides
10
Part of a line with two endpoints