横向
1
Corner point of a polygon
3
Result of addition
5
Number with digits after a point
6
Math using letters for unknown values
7
Collection of distinct elements
11
Mathematical rule or equation
纵向
2
Proven mathematical statement
3
System of ordered marks for measuring
4
Space between two intersecting lines
8
Three-sided polygon
9
Value that does not change
10
Split into equal parts