横向
1
Number less than zero
4
U-shaped curve of a quadratic function
5
Mathematical rule or equation
9
Number greater than zero
11
Number that divides evenly into another
12
Space between two intersecting lines
纵向
2
Three-sided polygon
3
Mathematical statement of equality
6
Corner point of a polygon
7
Number divisible only by 1 and itself
8
Visual representation of data
10
Part of a whole number
12
Math using letters for unknown values