横向
1
Mathematical statement of equality
6
Closed shape with straight sides
7
Value that does not change
8
Total distance around a shape
10
Space between two intersecting lines
12
Math using letters for unknown values
纵向
2
System of ordered marks for measuring
3
Number greater than zero
4
Longest side of a right triangle
5
Number that divides evenly into another
9
Single numeral from 0 to 9
11
Visual representation of data
13
Symbol representing unknown value
14
Number less than zero