You can use a simple formula to sum numbers in a range (a group of cells), but the SUM function is easier to use when you’re working with more than a few numbers. For example =SUM (A2:A6) is less likely to have typing errors than =A2+A3+A4+A5+A6.

Operators specify the type of calculation that you want to perform on elements in a formula—such as addition, subtraction, multiplication, or division. There are four different types of calculation operators: arithmetic, comparison, text concatenation, and reference.

In Excel, the IF function allows you to make a logical comparison between a value and what you expect by testing for a condition and returning a result if that condition is True or False. =IF (Something is True, then do something, otherwise do something else)

Yes, you can use Excel for the web to find totals for a column or row of numbers, but you can also calculate a mortgage payment, solve math or engineering problems, or find a best case scenario based on variable numbers that you plug in. Excel for the web does this by using formulas in cells.

In its simplest form, the VLOOKUP function says: =VLOOKUP (What you want to look up, where you want to look for it, the column number in the range containing the value to return, return an Approximate or Exact match – indicated as 1/TRUE, or 0/FALSE).

In this case we're using IF with the ISBLANK function: =IF (ISBLANK (D2),"Blank","Not Blank") Which says IF (D2 is blank, then return "Blank", otherwise return "Not Blank"). You could just as easily use your own formula for the "Not Blank" condition as well.

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Overview of formulas in Excel. Create or change a cell reference. Create a named range from selected cells in a worksheet. Assign a descriptive name to a range of cells (a “named range”), that can be used in formulas.

The VLOOKUP and HLOOKUP functions, together with INDEX and MATCH,  are some of the most useful functions in Excel. Note: The Lookup Wizard feature is no longer available in Excel. Here's an example of how to use VLOOKUP. =VLOOKUP (B2,C2:E7,3,TRUE) In this example, B2 is the first argument —an element of data that the function needs to work.

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