横向
1
Value that does not change
5
Math using letters for unknown values
8
Part of a circle's circumference
9
Number greater than zero
13
U-shaped curve of a quadratic function
纵向
2
Amount of space an object occupies
3
Sum divided by count
4
Mathematical statement of equality
6
Rectangle with four equal sides
7
Line touching circle at one point
10
Part of a whole number
11
Proven mathematical statement
12
Line crossing from corner to corner
14
Longest side of a right triangle