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Evaluate part of a formula

Windows shortcut 
F9
Mac shortcut 
FnF9

Use this keyboard shortcut to evaluate parts of a formula. This is not really a keyboard shortcut per se, but rather just a trick you can use to find out how Excel evaluates parts of a formula as it calculated. This is a great way to check a formula to find out how it works, or to debug a formula when it isn't working properly. See this video for a demonstration of F9 to evaluate parts of a formula.

Related videos

The videos below demonstrate this shortcut.
In this video we'll look at how to create a dynamic named range with the INDEX function. INDEX is a non-volatile function, so it won't recalculate whenever a change is made to a worksheet.
In this video we'll look at how to create a dynamic reference to a named range with the INDIRECT function. This is one way to switch ranges on the fly.
In this video we'll look how to use the FILTER function with Boolean logic to apply multiple criteria. The result is a filtered list where the color is Blue and the month is June
In this video, we’ll look at how to perform a random sort with the SORTBY function, with help from the RANDARRAY function.
In this brief video, we look at how to debug a formula using the F9 key. If you work with formulas a lot, this is one of the most useful skills you can learn.

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