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Spreadsheets

Spreadsheets. Formulae. Working with spreadsheets. Must be able to format cells Should be able to use formulae in spreadsheets Could understand and correct error values. Ribbon groups used. You will be using the Font group and the Number group on the Home tab. Character formatting.

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Spreadsheets

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  1. Spreadsheets Formulae

  2. Working with spreadsheets Must be able to format cells Should be able to use formulae in spreadsheets Could understand and correct error values

  3. Ribbon groups used • You will be using the Font group and the Number group on the Home tab. Character formatting Border Comma style

  4. Using formulae • Follows similar BODMAS rules that you use in maths: Brackets, multiply/divide, add/subtract () * / + -

  5. Create a worksheet to do simple calculations • Open Excel • Enter the following data: • Save the workbook with the name Sums

  6. Selecting cells • Click on single cells to select them. • Click and drag to select a range of cells or hold the shift key while you select the last cell in the block. • Click a row or column header to select either a row or a column. • Click the intersection of the rows/columns to select all cells in the worksheet. • Select non-adjacent cells by holding down the Ctrl key

  7. Formatting cell contents • Bold • Italic • Underline • Double Underline

  8. Inserting a border • Hold down your Ctrl key and select A4, C4, E4 and G4 • Click the arrow to the right of the border tool and select Top and Thick Bottom Border: • Click the right hand side of the Border button again and select More Borders change the line colour to red and select the top and bottom borders:

  9. Using the Format cells dialogue box lets you make many different changes without having to select individual buttons on the ribbon. Dialogue Launcher Save your work as Sums.

  10. Entering formulae • Always start with an equals sign (=) • This tells Excel that you are about to enter a formula. • Enter a formula into cells A4, C4, E4 and G4 which will calculate the totals. • Remember by using formulae, if the numbers change the totals will be recalculated automatically. Change A2 to 75. What is the answer now? • Save your work.

  11. Standard error values and correction actions • If you try to make Excel do a formula it cannot calculate, for example, using a non-numeric value, the error #VALUE! will appear. • Change the formula in C4 to read =C1-C3 • Another error will occur if you if you try and divide a number by zero - #DIV/0! When you divide anything by zero it is infinity so Excel shows the error. • Replace the contents of G3 with 0 • Use the undo/redo buttons on the quick access toolbar to undo or redo an action.

  12. Tip: A space is text (non-numeric) even though it is invisible! Tip: Some other standard error values: ##### This indicates that the cell contents cannot be displayed because the column is too narrow. #NAME? This is displayed if Excel does not recognise the text in a formula. #NUM! This is displayed if invalid numeric values are used in a formula. #REF! This is displayed if a cell referred to in a formula has been deleted.

  13. Starter: This image shows six error values. Explain what each means.

  14. Formatting numbers • Text in a cell is left-justified. • Numeric data is right-justified. • Numbers can be formatted in several ways. An example is to include a comma to indicate thousands. • Click on cell A2 and drag to cell G4 • Right click the selection and choose Format Cells to open the dialogue box.

  15. Choose the Number tab and make sure that Number has been selected from the category list. • Click the checkbox Use 1000 Separator (,). • Click OK • Try entering a value greater than 1000 to see how it is displayed. • Save and close the workbook. These buttons can also be used for the same functions

  16. Assessment on progress • Complete exercise 1 • You will be working independently • Do not copy from anyone • Do not help anyone • Your teacher cannot help you • You may refer to your notes/handouts • You are allowed to use the Microsoft Help feature

  17. Progress checklist 2 Name: Date: • Do I know what an Excel formula is? • Do I know the basic arithmetic symbols used by Excel formulae? • Can I enter a formula in a worksheet cell? • Do I know the different ways to select cells in a worksheet? • Can I apply simple formatting to a worksheet cell? • Can I add borders to a worksheet cell? • Do I know what Excel’s standard error values mean? • Can I apply different formats to numbers and do I know what they mean?

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