横向
1
System of ordered marks for measuring
3
Part of a line with two endpoints
4
Difference between highest and lowest values
5
Math using letters for unknown values
6
Value that does not change
11
Result of raising a number to an exponent
纵向
1
Rectangle with four equal sides
2
Line touching circle at one point
3
Steepness of a line
7
Total distance around a shape
8
Divisible by two
9
Number that divides evenly into another
10
Parts per hundred
12
Space between two intersecting lines
13
Three-sided polygon