Excel SUM Function  Microsoft Excel SUM Function Tutorial
Microsoft Excel SUM Function Tutorial
Microsoft Excel SUM Function Tutorial
What is the Microsoft Excel SUM Function?The SUM function is a computer program that you run from a worksheet cell formula. It adds a group of numbers together generally from a worksheet area you specify (called a range). You run the SUM worksheet function by typing its name in a formula then followed by the information it is suppose to calculate. Since adding cell values together on the worksheet is a very common task and can take a long time if you were to use a standard formula like =A1+A2+A3..., this function allows you to perform an addition calculation very rapidly on a great deal of numbers. This function is capable of adding 2 cell values together or thousands of cell values together. The SUM worksheet function is most commonly used to add a row of numbers or a column of numbers together on the worksheet. How Do You Type the SUM Worksheet Function in a Formula?Whenever you type a formula in a worksheet cell, this is called syntax or grammar. The general SUM function syntax has a format like this when you type it in a worksheet cell: =SUM(number1,[number2], ...) Where number1, [number2] ..... are called the function argument list. Remember, you are running a computer program at this point so the program needs information to operate and that is why there is an argument list. When you see an argument list and you see square brackets [ ] around the argument name, this means the argument is optional and you do not have to include it when typing unless you need it. So for the syntax above, you need to include one argument for the SUM function when typing it in a worksheet cell formula in order for it to calculate correctly. How many arguments can be placed in the list is dependent upon the Excel version you are using. What argument values can be used are discussed below. Remember functions expect certain things in their argument lists, if you do not put the correct information in the list they will generate an error when run. How Do You Run the SUM Function?Since the SUM function is a computer program, it runs when you press Enter to enter the formula that contains it. If any of the arguments are wrong, the function will return an error. What Do I Type for a SUM Function Argument?When typing the SUM function in a worksheet cell formula, you need to replace the number1... argument list with arguments separating each one with a comma (,). Since the SUM function adds things it expects numbers. Some typical arguments you can use are:
* It is possible to name a cell or group of cells on a worksheet and use that name in place of a range reference or cell reference. Consult Excel help on how to name a cell. Additional SUM Function ExamplesThe worksheet seen below contains some typical worksheet formulas that run the SUM worksheet function. Pay close attention to the argument list and the syntax used to write the formula.
Things to Know About the SUM Function

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