横向
1
Parts per hundred
3
Mathematical rule or equation
5
Number with digits after a point
8
U-shaped curve of a quadratic function
10
Distance from center to edge of circle
13
Visual representation of data
纵向
2
Math using letters for unknown values
4
Middle value in an ordered dataset
6
Number divisible only by 1 and itself
7
Divisible by two
8
Lines that never intersect
9
Number greater than zero
11
Rectangular array of numbers
12
Part of a circle's circumference