The `SUM`

function in Microsoft Excel is a tool for adding a range of values. The `SUM`

function may help us rapidly get the total, whether we’re dealing with a simple set of data or a more complex spreadsheet.

The basic syntax for the `SUM`

function is as follows:

=SUM(number1, number2, ...)

Here, `number1`

and `number2`

represents the cell number or any numeric value. It's worth noting that we have the flexibility to include additional cells as needed.

Note:Instead of using explicit values, we can also use ranges or cell references.

Following are the basic examples of how to use `SUM`

:

=SUM(10,20,30)

=SUM(A1,A2,A3)

=SUM(A1:A3)

The following is a step-by-step guide to using the `SUM`

function:

**Select the cell:**We click on the cell where we want the sum to appear.**Use the SUM function:**We type`=SUM(`

into the selected cell.**Select the range:**If we want to sum the values in cells A1 to A5, there are two ways to achieve the desired result:We can enter “A1:A5” after the opening parenthesis and then close the parenthesis and press “Enter.” The formula should look something like this:

`=SUM(A1:A5)`

.We can also enter “A1,A2,A3,A4,A5” after the opening parenthesis and then close the parenthesis and press “Enter.” The formula should look something like this:

`=SUM(A1,A2,A3,A4,A5)`

.

Let’s now apply the steps above on our dataset. Let's suppose we have the following dataset:

Now, our objective is to determine the total sales generated by the given dataset. We aim to calculate the sum of sales for all the products mentioned in the dataset. There are two ways to calculate the sum. Let’s use both:

First we select the cell, where we need to calculate the sum. Let’s suppose here the cell number is B12. After we select the “cell(B12),” write the following in the cell:

=SUM(B2,B3,B4,B5,B6,B7,B8,B9)

Let's visualize the above steps in action.

Selecting the cell B12 to calculate the sum

Note:As we can see in the slides above, when multiple cells are added, the system automatically highlights the cell number and alters its color for easier identification.If an empty cell is included in a sum formula and subsequently populated with a value, the total in cell B12, where the sum is calculated, will automatically update to reflect the new value.

First we select the cell, where we need to calculate the sum. Let’s suppose here the cell number is B12. After we select the “cell(B12),” write the following in the cell:

=SUM(B2:B9)

Let's visualize the steps above in action.

Selecting the cell B12 to calculate the sum

If any of the given values are not numbers, it throws the `#VALUE!`

Error.

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