横向
1
Math using letters for unknown values
3
Part of a line with two endpoints
5
U-shaped curve of a quadratic function
7
Repeated addition
纵向
2
Visual representation of data
3
Rectangle with four equal sides
4
Number that divides evenly into another
6
Steepness of a line
8
System of ordered marks for measuring
9
Three-sided polygon
10
Exact correspondence on both sides