横向
1
Part of a line with two endpoints
2
Difference between highest and lowest values
6
Math using letters for unknown values
8
Mathematical rule or equation
纵向
2
Comparison of two quantities
3
Number divisible only by 1 and itself
4
Result of raising a number to an exponent
5
Longest side of a right triangle
7
Middle value in an ordered dataset
9
Mathematical statement of equality