横向
1
Closed shape with straight sides
3
Total distance around a shape
7
U-shaped curve of a quadratic function
9
Number less than zero
10
Rectangle with four equal sides
11
Power to which a number is raised
12
Repeated addition
14
Distance from center to edge of circle
纵向
2
Mathematical statement of equality
4
Number divisible only by 1 and itself
5
Amount of space an object occupies
6
Divisible by two
8
Space between two intersecting lines
13
Corner point of a polygon
15
Math using letters for unknown values