Most spreadsheets also have automatic calculation features which allows the selection of a function from a list, which saving the trouble of having to type in the actual formula. If you put data in one cell and then fill right or fill down, the spreadsheet will make a guess at what you want in those cells. It is usually correct but not always. Automatic recalculation such that if a data entry is changed, the spreadsheet will automatically recalculate any cells containing formulas. Pre-defined functions eg.
Templates are pre-designed worksheets without number values.
They can be custom made and save a lot of time when dealing with complex spreadsheets. Linking is used to link spreadsheets so that when a value changes in one worksheet it automatically alters the value in another worksheet. Spreadsheets can also enable equation solvers where you define the equation, enter the target value and the computer determines the necessary data values. This is one of the most useful features of spreadsheets, make sure you understand it. Ask for help if you don't.