Chapter.01
-
Upload
program-in-interdisciplinary-computing -
Category
Education
-
view
11.080 -
download
3
description
Transcript of Chapter.01
Applying Fundamental Excel Skills and Tools in Problem Solving
Chapter 1
Learning Objec-ves
Level 1 • Define common Excel error messages • Correct basic formaBng problems in a worksheet
• Correct errors in formulas • Understand precision vs. display of cell values
Succeeding in Business with Microsoft Excel 2010 2
Learning Objec-ves
Level 2 • Work with mulGple worksheets • Calculate total, average, minimum, and maximum values with funcGons
• Understand how funcGons work: syntax, arguments, and algorithms
• Use the AutoSum feature to perform calculaGons quickly
• Calculate the number of values using both COUNT and COUNTA
Succeeding in Business with Microsoft Excel 2010 3
Learning Objec-ves
Level 3 • Organize a workbook • Understand relaGve, absolute, and mixed cell referencing
• Write formulas with different types of cell referencing
• Copy formulas with different types of cell referencing
• Name a cell or cell range
Succeeding in Business with Microsoft Excel 2010 4
Func-ons Covered in This Chapter
• AVERAGE • COUNT • COUNTA • MIN • MAX • SUM
Succeeding in Business with Microsoft Excel 2010 5
Chapter Introduc-on
• Fundamental skills and tools encountered when working with Excel to solve problems and support decision making
• WriGng formulas in cells to perform calculaGons • Designing a workbook so that calculaGons can be automaGcally updated if input values are changed
• FormaBng opGons that can be applied to cells and ranges of cells
• Rules that affect how informaGon is displayed and calculaGons are performed in an Excel worksheet
Succeeding in Business with Microsoft Excel 2010 6
Chapter Introduc-on (con-nued)
• Use of simple funcGons (i.e., shortcuts available for predefined tasks)
• Results of copying formulas with different kinds of cell references
To go to Level 1, click here To go to Level 2, click here To go to Level 3, click here
Succeeding in Business with Microsoft Excel 2010 7
Level 1 Objec-ves: Iden-fying and Correc-ng Common Errors in FormaEng and
Formulas
• Define common Excel error messages • Correct basic formaBng problems in a worksheet
• Correct errors in formulas • Understand precision vs. display of cell values
Succeeding in Business with Microsoft Excel 2010 8
Examining a Basic Worksheet for Errors
Succeeding in Business with Microsoft Excel 2010 9 Level 1 home
Excel Error Messages
Succeeding in Business with Microsoft Excel 2010 10 Level 1 home
Correc-ng FormaEng Problems
• Modifying column width – Double-‐click column dividing line to make the column as wide as the longest entry
– Drag column dividing line to desired width – Click format bu[on in Cells group on Home tab -‐ Click Auto-‐fit Column Width
• Checking error messages (Error Alert bu[on) • FormaBng numbers • InserGng and aligning a Gtle
Succeeding in Business with Microsoft Excel 2010 11 Level 1 home
FormaEng Numbers
Succeeding in Business with Microsoft Excel 2010 12 Level 1 home
Worksheet aMer Correc-ng FormaEng Problems
Succeeding in Business with Microsoft Excel 2010 13 Level 1 home
Modifying Cell FormaEng
Succeeding in Business with Microsoft Excel 2010 14 Level 1 home
Documen-ng a Worksheet
Succeeding in Business with Microsoft Excel 2010 15 Level 1 home
Correc-ng Errors in Formulas
• Print the worksheet in two different formats – Default format (displays values) – Format that displays formulas
• Check simple formulas for accuracy • Use formulas and cell references instead of values
• Determine order of precedence • Understand precision vs. display of cell values • Check accuracy in formula updates Succeeding in Business with Microsoft Excel 2010 16 Level 1 home
Checking Simple Formulas for Accuracy
Succeeding in Business with Microsoft Excel 2010 17 Level 1 home
Determining Order of Precedence Rules
Succeeding in Business with Microsoft Excel 2010 18 Level 1 home
Understanding Precision Versus Display of Cell Values
• Excel can display values in several different formats without changing the precise value stored in the program
Succeeding in Business with Microsoft Excel 2010 19 Level 1 home
Understanding Precision Versus Display
Succeeding in Business with Microsoft Excel 2010 20 Level 1 home
Checking Accuracy in Formula Updates
Succeeding in Business with Microsoft Excel 2010 21 Level 1 home
Checking Accuracy in Formula Updates
Succeeding in Business with Microsoft Excel 2010 22 Level 1 home
Level 1 Summary
• LocaGng and correcGng common errors in formaBng or formulas to make the worksheet readable and funcGonal
Succeeding in Business with Microsoft Excel 2010 23
Level 2 Objec-ves: Calcula-ng and Comparing Data Using Simple
Func-ons
• Work with mulGple worksheets • Calculate total, average, minimum, and maximum values with funcGons
• Understand how funcGons work: syntax, arguments, and algorithms
• Use the AutoSum feature to perform calculaGons quickly
• Calculate the number of values using both COUNT and COUNTA
Succeeding in Business with Microsoft Excel 2010 24
Working with Mul-ple Worksheets
Succeeding in Business with Microsoft Excel 2010 25 Level 2 home
Func-ons
• Predefined formula that performs calculaGons • Structure
– FuncGon name and open parenthesis mark – Arguments (list of inputs in a specific order, separated by commas)
– Closing parenthesis mark • Has its own syntax (specifies funcGon name and order of arguments)
• Behaves according to its algorithm (rules programmed into the funcGon)
Succeeding in Business with Microsoft Excel 2010 26 Level 2 home
Calcula-ng Totals Using the SUM Func-on
• SUM funcGon – Adds a list of values and/or cell ranges
• Excel has an AutoSum feature for quick calculaGon
Succeeding in Business with Microsoft Excel 2010 27 Level 2 home
Inser-ng a Func-on into a Formula
Succeeding in Business with Microsoft Excel 2010 28 Level 2 home
Common Excel Func-ons
Succeeding in Business with Microsoft Excel 2010 29 Level 2 home
Calcula-ng Average, Minimum, and Maximum Values
Succeeding in Business with Microsoft Excel 2010 30
The AVERAGE function ignores blank cells and cells with text.
Level 2 home
Calcula-ng the Number of Values Using COUNT and COUNTA Func-ons
Succeeding in Business with Microsoft Excel 2010 31
COUNT function ignores blank cells and cells with text; COUNTA function does not ignore text cells.
Level 2 home
Level 2 Summary
• Simple funcGons (SUM, AVERAGE) and how to use them in formulas
• Syntax of funcGons and their underlying algorithms
• AutoSum tool
Succeeding in Business with Microsoft Excel 2010 32
Level 3 Objec-ves: Analyzing Cell References When Wri-ng and Copying
Formulas
• Organize a workbook • Understand relaGve, absolute, and mixed cell referencing
• Write formulas with different types of cell referencing
• Copy formulas with different types of cell referencing
• Name a cell or cell range
Succeeding in Business with Microsoft Excel 2010 33
Crea-ng a Budget Workbook
Succeeding in Business with Microsoft Excel 2010 34
Setting up a preliminary budget
Level 3 home
Organizing the Workbook
Succeeding in Business with Microsoft Excel 2010 35 Level 3 home
Inputs and outputs on separate worksheets
One worksheet for each quarter with all inputs and outputs for all three pricing alternatives on a single worksheet
One worksheet for each pricing alternative with all inputs and outputs for all four quarters on a single worksheet
Understanding Rela-ve Cell Referencing
• Allows use of a “general” formula over and over again, but with a different set of numbers
• Can also copy formulas using the fill handle
Succeeding in Business with Microsoft Excel 2010 36 Level 3 home
Rela-ve Cell Referencing
Succeeding in Business with Microsoft Excel 2010 37
Excel automatically alters the new formula relative to the location of the original formula
Level 3 home
Understanding Absolute and Mixed Cell Referencing
• Absolute cell referencing – To indicate that a cell reference (both column and row) – or even a part of a cell reference – should remain unchanged when copying
– Syntax = $ before column le[er, before reference number, or both
• Mixed cell referencing – A cell reference that has only one $ – Common when you need to copy a formula both down a column and across a row at the same Gme
Succeeding in Business with Microsoft Excel 2010 38 Level 3 home
Understanding Absolute and Mixed Cell Referencing
Succeeding in Business with Microsoft Excel 2010 39
The formula entered in cell C11 applies absolute and mixed cell referencing
Level 3 home
Other Cell Referencing Techniques
• Naming a cell or cell range • WriGng a formula to subtotal the cost of goods sold
• WriGng a formula to calculate selling expense • WriGng a formula to calculate projected earnings
Succeeding in Business with Microsoft Excel 2010 40 Level 3 home
Comple-ng the Budget Worksheet
Succeeding in Business with Microsoft Excel 2010 41 Level 3 home
Comple-ng the Budget Workbook
Succeeding in Business with Microsoft Excel 2010 42 Level 3 home
Level 3 Summary
• WriGng and copying formulas • RelaGve, absolute, and mixed cell references
Succeeding in Business with Microsoft Excel 2010 43
Chapter Summary
• IdenGfying and correcGng common errors in formaBng and formulas
• CalculaGng and comparing data using simple funcGons
• Analyzing cell references when wriGng and copying formulas
Succeeding in Business with Microsoft Excel 2010 44