横向
1
Difference between highest and lowest values
4
Proven mathematical statement
5
Number that divides evenly into another
8
Split into equal parts
10
Mathematical rule or equation
纵向
2
Math using letters for unknown values
3
Number with digits after a point
4
Three-sided polygon
6
Line touching circle at one point
7
Result of multiplication
9
Collection of distinct elements
11
Part of a whole number