# LessonGuided PracticeQuiz Choose Your Learning Channel! Jessica Potter Binko.

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LessonGuided PracticeQuiz Choose Your Learning Channel! Jessica Potter Binko

Excel Formulas Lesson What are formulas? Excel’s version of mathematical equations Performs all sorts of problems Particularly useful in business math Cumulative sales totals Inventory orders Client management Next Slide

Formula Structure Regular Math Problem Set-UpExcel Math Problem Set-Up 2+2==2+2 All Excel formulas begin with an equal sign. Otherwise, the software will have no way of knowing you want to do math. Excel Formulas Lesson Next Slide

Cell Reference Cells have unique names. They are referenced by their column letter and row number. cell A1 Excel Formulas Lesson Next Slide

Cell Ranges Excel identifies a range by the cells in the upper left and lower right corners of the range. You use a colon to signify a range in a formula. For example, range A1:B3 includes cells A1, A2, A3, B1, B2, and B3. Excel Formulas Lesson Next Slide

Mathematical & Reference Operators You can use mathematical and reference operators in Excel to build formulas. Basic operators include the following: Excel Formulas Lesson Math Operator Operation +Addition - Subtraction *Multiplication /Division %Percentage =Equal to Reference Operator Operation,“and” :Range Next Slide

Please Excuse My Dear Aunt Sally… Order of Operations FirstParentheses SecondExponents ThirdMultiplication & Division FourthAddition & Subtraction Excel Formulas Lesson When you are creating equations, the order of operations determines the results. For example, suppose you want to determine the average of values in cells A2, B2, and C2. =A2 + B2 + C2/3 = WRONG RESULTS =(A2 + B2 +C2)/3=CORRECT RESULTS Next Slide

Common Functions Tells Excel what type of math problem you want to solve. Goes right after the = sign. Example: =FUNCTION(Math Problem) Excel Formulas Lesson Function:Purpose:Example: SUMAddition and Subtraction=SUM(2+2) 5 PRODUCTMultiplication=PRODUCT(2*2) 4 QUOTIENTDivision=QUOTIENT(2/2) 1 AVERAGEFinds Averages=AVERAGE(1,2,3,4) 2.5 Next Slide

More Common Functions Goes right after the = sign. Example: =FUNCTION(Math Problem) Excel Formulas Lesson Next Slide Function:Purpose:Example: MEDIANFinds middle number in a series =MEDIAN(22,23,24) 23 PMTFinds the periodic payment for a fixed loan =PMT(interest rate/12, Term in Months, Loan Amount) RATEReturns an interest rate=RATE(Years of Loan*12, Monthly Payment, Amount of Loan)

How to Apply a Function to Create a Formula Manually You can just type the type of function that you want into the cell of a formula and get the desired results. Excel Formulas Lesson Next Slide

How to Apply a Function to Create a Formula “Insert Function” Dialog Box Click the “Formulas” tab. Select the type of math problem you are performing out of the function library. Choose the proper function. Excel Formulas Lesson Next Slide

Worksheet Errors Several times when you attempt formulas, you will receive an error message. Excel Formulas Lesson ErrorWhat it Means: #####Increase the column width. #NAME?Check your numbers, operators, functions, and even spacing to make sure that everything is correct. Somewhere in your formula, you made a mistake. #NUM! #REF! #VALUE!

Proper Formula Syntax =SUM(A4:A8) Guided Practice An Equal Sign always starts out an Excel equation. The Function: Tells Excel what kind of math problem you want to do. Parentheses: Signifies the order of operations. Cell Reference Name: The column letter corresponds with the row number. Range Operator: This formula includes cells A4, A5, A6, A7, and A8 Next Slide

Fill in the missing function 1.=_____(2+2) 2.=_____(2 - 2) 3.=_____(2*2) 4.= _____(2/2) SUM PRODUCT QUOTIENT Guided Practice Next Slide Answer each question on a blank sheet of paper. Click your mouse to discover the correct function.

Fill in the Blank 1.The first thing you put in a cell to tell Excel you want to do a math problem. 2.Signifies that you want to include a range of cells. 3.Tells the name of the cell. = : Cell Reference Guided Practice Next Slide Answer each question on a blank sheet of paper. Click your mouse to discover the correct answer.

Set it up Guided Practice Next Slide What is the proper syntax for calculating the average of cells A1, A2, A3, A4, and B3? =AVERAGE(A1:A4, B3)

Cell Reference Guided Practice Give the number for each cell reference name. 1.A3 2.A6 3.B2 4.B5 21 45 12 19

Excel Formulas Quiz Directions: Get out a blank sheet of paper and pencil. Write the letter that corresponds with the best answer to complete each question. Do not go back over the lesson portion of the PowerPoint. You may not use any notes on the quiz. Questions are worth 2 points each for a grand total of 20 points. Begin when you’re ready. Quiz Begin

1. What is the first thing you place into a cell when creating a formula? A.) A Number B.) An Operator (Ex: +,-,/,*) C.) An Equal Sign D.) A Function (Ex: SUM) Quiz Next Slide

2. What is the proper syntax for adding cells A1, A2, A3, A4, and A5? A.) A1:A5= B.) SUM=A1:A5 C.) =SUM(A1:A5) D.) PRODUCT(A1:A5) Quiz Next Slide

3. What cells are included in B2: B5? A.) B2, B3, B4, B5 B.) B2, B5 C.)B1, B2, B3, B4, B5 D.)B4, B5 Quiz Next Slide

4. What is the first order of operations? A.) Exponents B.) Division C.) Multiplication D.) Parentheses Quiz Next Slide

5. What is the proper function for calculating averages? A.)AVERAGE B.)AVGE C.)SUM D.)QUOTIENT Quiz Next Slide

6. If the ‘#####’ error message reads in a cell where you inserted a formula, what should you do to correct the problem? A.)Check the function for an unacceptable argument. B.) Check to make sure the formula referenced is the correct value. C.) Double-check arguments and operands. D.) Increase column width. Quiz Next Slide

7. Which function is most appropriate for a subtraction problem? A.) PMT B.) DIFFERENCE C.) RATE D.) SUM Quiz Next Slide

8. Which function is most appropriate in figuring out your monthly car payment? A.) AVERAGE B.) PMT C.) RATE D.) SUM Quiz Next Slide

9. In formulas, what is the comma’s (, ) role? A.) Range Operator. It evaluates the entire range of cells. B.) It signifies to Excel that you want to perform a problem. C.) Union Operator. It evaluates noncontiguous cells. D.) Financial Operator. It evaluates loans, interest, and principle. Quiz Next Slide

10. Why are parentheses used in formulas? A.) To differentiate from the function and formula. B.) To show Excel which part of the formula to complete first. C.) To separate different cell references. D.) To let Excel know exactly what type of calculation you’re performing. Quiz Next Slide

Friendly Reminders Make sure your name is on your quiz. Make sure the quiz is labeled with the date. Make sure all problems are labeled 1-10. Turn in your quiz and return to your seat. Remain quiet until all classmates are finished with the quiz. Quiz Find out where I got my information

Citations 1. Harville, Lindsey. Lindsey Harville’s EDM 310 Class Blog. 11 Dec. 2011. Web. 15 Sept. 2012. 2. Isard, Debbie Wohl. Attention Debbie Dear. 3 April 2011. Web. 15 Sept. 2012. 3. Shoup, Kate. Microsoft Office 2010 Simplified. Ed. Jody Lefevere. Indianapolis, Indiana: Wiley Publishing, Inc, 2010. Print. 4. ThinkQuest. Oracle Education Foundation. 2000. Web. 15 Sept. 2012.

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