Deleting Table Rows and Columns
To delete one or more rows or columns in a table, you must first select at least one cell
in each of the rows or columns you want to delete.
Here are ways to delete selected rows or columns:
Choose Format > Table > Delete Column or Delete Row.
Click Inspector in the toolbar and click the Table button. In the Table inspector, click
Table, and then choose Delete Row or Delete Column from the Edit Rows & Columns