Seems like you have forgotten to attach options to choose. But there are some comon statements for such type of tasks and I can recommend you to use this one : finance records should never be kept in computer files. This one is definitely <span> true about computer files of financial records.</span>Next time be more careful.
The main function you will use is.... Type SUM= in all caps into a cell and then you can control click cells to add them together. You can also add PEMDAS properties to do calculations withing it.
