How do i enter a formula to total a column of numbers

i need to add up a column of numbers but dont know the format to enter the formula

Hello,

Here is one way → Mathematical Functions

Here is link to the documentation → https://wiki.documentfoundation.org/Documentation/Publications

for example, if you want to sum cells a1 to a10 in cell a11:

make the contents of A11:
=SUM(a1:a10)