Apple iWork '08 - Manual (Page 60)

60 Chapter 2 Getting Started with Numbers
To learn some basic table characteristics:
1 Select the Loan Comparison table by moving your pointer to the edge of the table.
When the pointer changes to include black crosshairs, click to select the table.
Square selection handles appear at the edges of a table when it’s selected.
When a table’s selected, you can work with the table as a whole. For example, you can
add a particular background color to the table or resize the table.
2 To work with a particular cell, you select the cell by moving the pointer over it.
The pointer changes to a white plus sign, and you click the cell to select it.
Select the bottom right table cell, which contains the value $35,834.