横向
1
Amount of space an object occupies
4
Corner point of a polygon
7
Part of a whole number
9
Number divisible only by 1 and itself
11
Number with digits after a point
13
Repeated addition
纵向
2
Difference between highest and lowest values
3
Mathematical rule or equation
5
Rectangular array of numbers
6
Rectangle with four equal sides
8
The number representing nothing
10
Total distance around a shape
12
Number less than zero
14
Math using letters for unknown values