Question

Write down the 3 different formulae of ms-excel

Answer 1

1. SUM

Formula: =SUM(5, 5) or =SUM(A1, B1) or =SUM(A1:B5)

The SUM formula does exactly what you would expect. It allows you to add 2 or more numbers together. You can use cell references as well in this formula.

The above shows you different examples. You can have numbers in there separated by commas and it will add them together for you, you can have cell references and as long as there are numbers in those cells it will add them together for you, or you can have a range of cells with a colon in between the 2 cells, and it will add the numbers in all the cells in the range.

2. COUNT

Formula: =COUNT(A1:A10)

The count formula counts the number of cells in a range that have numbers in them.


This formula only works with numbers though:

It only counts the cells where there are numbers.

3. COUNTA

Formula: =COUNTA(A1:A10)

Counts the number of non-empty cells in a range. It will count cells that have numbers and/or any other characters in them.

The COUNTA Formula works with all data types.



It counts the number of non-empty cells no matter the data type.

4. LEN

Formula: =LEN(A1)

The LEN formula counts the number of characters in a cell. Be careful though! This includes spaces.

Answer 2

ANSWER


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SUM

The first Excel function you should be familiar with is the one that performs the basic arithmetic operation of addition:

SUM(number1, [number2], …)

In the syntax of all Excel functions, an argument enclosed in [square brackets] is optional, other arguments are required. Meaning, your Sum formula should include at least 1 number, reference to a cell or a range of cells. For example:

=SUM(A2:A6) - adds up values in cells A2 through A6.

=SUM(A2, A6) - adds up values in cells A2 and A6.

=SUM(A2:A6)/5 - adds up values in cells A2 through A6, and then divides the sum by 5.

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AVERAGE

The Excel AVERAGE function does exactly what its name suggests, i.e. finds an average, or arithmetic mean, of numbers. Its syntax is similar to SUM's:

AVERAGE(number1, [number2], …)

Having a closer look at the last formula from the previous section (=SUM(A2:A6)/5), what does it actually do? Sums values in cells A2 through A6, and then divides the result by 5. And what do you call adding up a group of numbers and then dividing the sum by the count of those numbers? Yep, an average!

So, instead of typing =SUM(A2:A6)/5, you can simply put =AVERAGE(A2:A6)

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TODAY & NOW

To see the current date and time whenever you open your worksheet without having to manually update it on a daily basis, use either:

=TODAY() to insert the today's date in a cell.

=NOW() to insert the current date and time in a cell.