横向
1
Divisible by two
4
Steepness of a line
5
U-shaped curve of a quadratic function
6
Middle value in an ordered dataset
11
Parts per hundred
12
Result of addition
14
Longest side of a right triangle
纵向
2
Proven mathematical statement
3
Line touching circle at one point
7
Sum divided by count
8
Amount of space an object occupies
9
Distance from center to edge of circle
10
Mathematical statement of equality
13
Math using letters for unknown values
15
Corner point of a polygon