横向
1
Mathematical statement of equality
4
System of ordered marks for measuring
6
Math using letters for unknown values
8
Space between two intersecting lines
9
Line crossing from corner to corner
11
Distance from center to edge of circle
纵向
2
Symbol representing unknown value
3
Rectangle with four equal sides
5
Split into equal parts
6
Part of a circle's circumference
7
Part of a whole number
10
Reference line in a graph