横向
1
Result of addition
3
Value that does not change
4
Difference between highest and lowest values
8
Number that divides evenly into another
9
Part of a circle's circumference
10
Result of multiplication
11
Proven mathematical statement
纵向
2
Amount of space an object occupies
5
Rectangle with four equal sides
6
Part of a whole number
7
Total distance around a shape
12
Part of a line with two endpoints
13
Exact correspondence on both sides