1. Pasewark & Pasewark Microsoft Office 2003: Introductory 1 INTRODUCTORY MICROSOFT EXCEL Lesson 4 – Worksheet Formulas

2. Excel – Lesson 4 Microsoft Office 2003: Introductory Pasewark & Pasewark 2 Objectives Enter and edit formulas. Distinguish between relative, absolute, and mixed cell references. Use the AutoSum button and the point-and- click method to enter formulas. Preview a calculation. Display formulas in the worksheet. Perform immediate and delayed calculations.

3. Excel – Lesson 4 Microsoft Office 2003: Introductory Pasewark & Pasewark 3 Terms Used in This Lesson Absolute cell reference Formulas Mixed cell reference Operand Operator Order of evaluation Point-and-click method Relative cell reference

4. Excel – Lesson 4 Microsoft Office 2003: Introductory Pasewark & Pasewark 4 Enter and Edit Formulas A worksheet formula consists of two components: – Operand is a number or cell reference used in formulas. – Operator tells Excel what to do with the operands. For example, in the formula =B3+5, B3 and 5 are operands. The plus sign (+) is an operator.

5. Excel – Lesson 4 Microsoft Office 2003: Introductory Pasewark & Pasewark 5 Order Evaluation Contents within parentheses are evaluated first. Mathematical operators are evaluated in order of priority, as shown in Table 4-2. Equations are evaluated from left to right if two or more operators have the same order of evaluation.

6. Excel – Lesson 4 Microsoft Office 2003: Introductory Pasewark & Pasewark 6 Order Evaluation (cont.)

7. Excel – Lesson 4 Microsoft Office 2003: Introductory Pasewark & Pasewark 7 Relative, Absolute, and Mixed Cell References Relative cell references – adjust to a different location when copied or moved. Absolute cell references – describe the same cell location in the worksheet regardless of where they are copied or moved. Mixed cell references – contain both relative and absolute cell references.

8. Excel – Lesson 4 Microsoft Office 2003: Introductory Pasewark & Pasewark 8 Point and Click The point-and-click method is helpful when you must enter long formulas. Include cell references in a formula by clicking on the cell rather than keying the reference.

9. Excel – Lesson 4 Microsoft Office 2003: Introductory Pasewark & Pasewark 9 Use the AutoSum Button The AutoSum button is used to sum long columns of numbers. – Place the highlight in the cell where you want the total to appear. – Click the AutoSum button. – Excel then displays an outline around the range it has selected. – Press Enter to display the sum in the cell.

10. Excel – Lesson 4 Microsoft Office 2003: Introductory Pasewark & Pasewark 10 Preview a Calculation Auto Calculation may be used to determine the sum, minimum, maximum, average, or count of a range of data. To use Auto Calculation, select the range, right-click on the status bar at the bottom of the screen, and select the function you want to perform on the submenu.

11. Excel – Lesson 4 Microsoft Office 2003: Introductory Pasewark & Pasewark 11 Display Formulas in the Worksheet When creating a worksheet with many formulas, it might be easier to organize formulas and detect formula errors when you can view all formulas at once. To view formulas, choose Options on the Tools menu.

12. Excel – Lesson 4 Microsoft Office 2003: Introductory Pasewark & Pasewark 12 Perform Immediate and Delayed Calculations Formula calculations can be performed at a specific moment instead of when a worksheet is changed. Delayed calculation is performed by clicking the Manual button on the Calculation tab of the Options dialog box. Manual calculation is performed by pressing the F9 key.

13. Excel – Lesson 4 Microsoft Office 2003: Introductory Pasewark & Pasewark 13 Summary Worksheet formulas perform calculations on values in the worksheet. Relative, absolute, and mixed cell references are used to create formulas. Formulas may be created quickly by using the point-and-click method.

14. Excel – Lesson 4 Microsoft Office 2003: Introductory Pasewark & Pasewark 14 Summary (cont.) A group of cells may be summed quickly by using the AutoSum button on the toolbar. You may view the formulas used to create values in a worksheet by making selections in the Options menu. You may delay calculation, however, until a time you specify by choosing Manual Calculation in the Options dialog box.