横向
1
Space between two intersecting lines
5
Mathematical statement of equality
6
Value that does not change
7
Result of raising a number to an exponent
10
Split into equal parts
纵向
2
Distance from center to edge of circle
3
The number representing nothing
4
Line touching circle at one point
8
Rectangle with four equal sides
9
Sum divided by count
11
Math using letters for unknown values