• Excelallows users to conduct simple computations such as totaling a row or column of data. More sophisticated scenarios, such as calculating mortgage payments, addressing engineering or math problems, and constructing financial models, can benefit from formulas and functions.
• Many activities and tasks can be performed automatically using formulas. Users can either type numbers directly into the formulas or use cell references to have the formula use the data in the referred cells.
• Spreadsheets have a lot of appeal since they do all of the arithmetic for you. Complex calculations for the relevant data can be easily computed after a formula is written and the application has a set command.
• SUM(number1, [number2], …)
• =SUM(A2:A8) – A simple selection that sums the values of a column.
• =SUM(A2:A8)/20 – Shows you can also turn your function into a formula.
• =AVERAGE(number1, [number2], …)
• =AVERAGE(B2:B11) – Shows a simple average, also similar to (SUM(B2:B11)/10)

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