横向
1
Repeated addition
2
Single numeral from 0 to 9
5
Number that divides evenly into another
6
Steepness of a line
7
Part of a whole number
10
Lines that never intersect
11
Number with digits after a point
12
Closed shape with straight sides
纵向
2
Line crossing from corner to corner
3
Exact correspondence on both sides
4
Result of multiplication
8
Space between two intersecting lines
9
U-shaped curve of a quadratic function