横向
1
Result of multiplication
4
Math using letters for unknown values
5
System of ordered marks for measuring
6
Number less than zero
7
Comparison of two quantities
8
Exact correspondence on both sides
10
Steepness of a line
11
Part of a circle's circumference
纵向
1
Number greater than zero
2
Mathematical statement of equality
3
Round shape with all points equidistant
9
Rectangular array of numbers
12
Longest side of a right triangle