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Spreadsheets Note: These are condensed keypoints for the purpose of printing for absent pupils. These are the same as the keypoints copied from the earlier slides.
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A spreadsheet is divided into columns and rows of cells
COPY WHOLE SLIDE SPREADSHEETS A spreadsheet is a general purpose package that is used to store data and perform calculations A spreadsheet is divided into columns and rows of cells
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Each cell is identified by its Cell Reference (B3 , C5 , F26 etc.)
COPY WHOLE SLIDE Each cell is identified by its Cell Reference (B3 , C5 , F26 etc.) Cells can be empty or contain numbers, text or a formula. Formulae use Cell References to perform calculations e.g. =A2+B3/C6
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Formatting -This is setting out how the spreadsheet looks, e.g.
COPY WHOLE SLIDE Formatting -This is setting out how the spreadsheet looks, e.g. Format as Currency (e.g. with a £ sign and 2 decimal places) Left justify, centre or right justify data Make a column wider
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Arithmetic signs Addition + Subtraction – Multiplication * Division /
COPY WHOLE SLIDE Arithmetic signs Addition + Subtraction – Multiplication * Division /
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Average(B3 to B7) =Average(B3:B7) Max (biggest number) =Max(B3:B7)
COPY WHOLE SLIDE FORMULA/FUNCTIONS When you need to add up several cells in your spreadsheet you use =SUM (A2:E2) instead of = A2 + B2 + C2 +D2 + E2 Other Useful Functions: Average(B3 to B7) =Average(B3:B7) Max (biggest number) =Max(B3:B7) Min (smallest number) =Min(B3:B7)
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COPY WHOLE SLIDE Formulas can be copied automatically from one cell to a range of cells , e.g. Fill Down. This is called replication. Cell protection is useful when you want to prevent others from changing/editing certain cells on the spreadsheet. It is a good idea to protect formulae and titles. Charts are used to reflect changes in data and can be easier to understand than a large spreadsheet of figures.
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COPY WHOLE SLIDE Simple Charting – Highlight the data you want to use and then select the type of chart you want Fully Labelled Charting – charts can include a title, labels on the axes and a key or legend if appropriate
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e.g. typing =IF (D5 > 49, “Pass”, “Fail”) in cell E5 means that
COPY WHOLE SLIDE An IF function allows choices to be made. A cell will take on one value if a certain condition is true and a different value otherwise, e.g. typing =IF (D5 > 49, “Pass”, “Fail”) in cell E5 means that if value in D5 is greater than 49 then E5 says “Pass” but if value in D5 is NOT greater than 49 then E5 says “Fail”
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COPY WHOLE SLIDE RELATIVE REFERENCE- When you replicate cells, the cell references change according to the row and column they are copied to. ABSOLUTE REFERENCE- When you replicate, cell references do not change when they are copied. In Excel, an absolute reference is indicated by putting a $ in front of the cell reference. e.g. the formula = L6 * $B$1 Relative Reference Absolute Reference
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Find Files Computer Rm Shared Documents Computing
Computing Student Resources Computing Read only files S – Elective Pupil Material Spreadsheets Copy Task 7 Glassonglass Double Glazing Paste to S2 Computing Science folder
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