Select a cell, type the label, click the enter box or press the Enter key. To enter a number . As a calculator . We have said that the primary benefit of the spreadsheet is the ability to perform calculations. To do this, formulas are used.
Formulas are mathematical statements used to calculate new values from existing values.
A formula can consist of values, cell references, operators, and functions. Note that every formula in Excel must begin with an equal sign, otherwise the computer treats it as text or accepts the value. Excel enters the formula into the active cell, and displays the resulting value. The formula is still displayed in the entry bar, so that you can see both the formula and the result simultaneously. To use Excel, you must address cells.