横向
1
Split into equal parts
2
U-shaped curve of a quadratic function
3
Reference line in a graph
4
System of ordered marks for measuring
9
Single numeral from 0 to 9
10
Repeated addition
11
Number that divides evenly into another
12
Amount of space an object occupies
纵向
2
Number greater than zero
5
Part of a line with two endpoints
6
Round shape with all points equidistant
7
Distance from center to edge of circle
8
Rectangle with four equal sides
13
Mathematical rule or equation