Select tables, cells, rows, and columns in Numbers on iPhone
To modify tables, cells, rows, and columns, you must first select them.
Select a table
Sometimes you must select rather than just tap a table to modify it. Selecting ensures that the table is in the correct state for the steps that follow.
Tap the table, then tap
in its top-left corner; three blue dots appear on the edges of the table when it’s selected.
Select cells
Select a cell: Tap it once.
Select a range of cells: Tap a cell, then drag a blue dot to encompass the range of cells you want.
Accessibility Tip: To make a rectangular selection of multiple cells using VoiceOver, select any cell handle. Double-tap and hold, then drag up, down, left, or right to change the selection. VoiceOver speaks the cell selection when you stop dragging the handle.Select a cell to add or edit content: Double-tap the cell.
Select rows and columns
Tap the table.
Letters appear above the columns and numbers appear to the left of the rows.
Do any of the following:
Select a single row or column: Tap the number or letter for the row or column.
Select multiple rows or columns: Tap the number or letter for a row or column, then drag a blue dot to encompass the rows or columns you want.
Modify tables, cells, rows, and columns
Select a table or any cells, rows, or columns.
Do any of the following:
Tap
and use the formatting controls to customize the selection—set table headers and footers, font styles and sizes, cell data formats, and more. The formatting controls that appear depend on what’s selected.Use the table controls to resize rows, columns, and tables—for example, tap
to add or remove columns, 
to add or remove rows, 
to resize columns, and so on.Use action menus to merge and autofill cells; add formulas and functions to cells; add, hide, and remove rows and columns; copy, paste, and delete content; and more.
Use keyboards to type words, numbers, and formulas in cells. To open the keyboard, double-tap a cell, or tap a cell then tap
at the bottom of the screen.