横向
1
Amount of space an object occupies
3
Part of a whole number
5
Number greater than zero
7
Math using letters for unknown values
8
The number representing nothing
10
Mathematical statement of equality
纵向
2
Value that does not change
4
Distance from center to edge of circle
5
Result of raising a number to an exponent
6
Symbol representing unknown value
7
Reference line in a graph
9
Collection of distinct elements