横向
1
Number with digits after a point
4
Number that divides evenly into another
5
Amount of space an object occupies
8
Result of multiplication
9
Closed shape with straight sides
10
Three-sided polygon
11
The number representing nothing
12
Visual representation of data
纵向
2
Part of a circle's circumference
3
Math using letters for unknown values
6
Power to which a number is raised
7
Result of addition
8
Result of raising a number to an exponent
9
Number divisible only by 1 and itself
13
Rectangular array of numbers