横向
1
Sum divided by count
5
Divisible by two
7
Line crossing from corner to corner
8
U-shaped curve of a quadratic function
12
Split into equal parts
纵向
2
Lines that never intersect
3
Round shape with all points equidistant
4
Steepness of a line
6
Value that does not change
9
Repeated addition
10
Power to which a number is raised
11
Amount of space an object occupies
13
Comparison of two quantities