1. Creating a Basic Calculator using Microsoft Excel Leah Drauch West Point Middle School

2. Building on Our Work Turn on your computer Turn on your computer Open from your folder Excel Intro Open from your folder Excel Intro You should have a document that looks like this. You should have a document that looks like this. Please wait when you are ready.

3. Basic Formulas Before we start adding formulas in to our spreadsheets, there are some important pieces of information we need to know: Before we start adding formulas in to our spreadsheets, there are some important pieces of information we need to know: All formulas MUST start with an equal sign (=). All formulas MUST start with an equal sign (=). Formulas DO NOT contain spaces. Formulas DO NOT contain spaces.

4. Symbols for Addition, Subtraction, Multiplication and Division Use the following symbols for each operation Use the following symbols for each operation Addition + Addition + Subtraction- Subtraction- Mutliplication* (above the 8) Mutliplication* (above the 8) Division/ (with the question mark) Division/ (with the question mark)

5. How do we tell the spreadsheet to do the work for us? If we are wanting to add the 6 and the 2 in column A, we could do that in our head! If we are wanting to add the 6 and the 2 in column A, we could do that in our head! But, what if the numbers were bigger? But, what if the numbers were bigger? Or, what if we had a long list of numbers to add? Or, what if we had a long list of numbers to add? We need a way to tell the spreadsheet to do it automatically for us, act as a calculator for us. We need a way to tell the spreadsheet to do it automatically for us, act as a calculator for us.

6. Lets Do It! Click in Cell A6 Click in Cell A6 Type an = sign Type an = sign Type A4+A5 (remember there should be NO spaces) (=A4+a5) Type A4+A5 (remember there should be NO spaces) (=A4+a5) Press Enter Press Enter Your answer should show up! Your answer should show up!

7. Your Turn Click in B6 Click in B6 Type in the correct formula to make it subtract. Type in the correct formula to make it subtract. When you hit Enter, did it give you the correct answer?(=B4-B5) When you hit Enter, did it give you the correct answer?(=B4-B5) What went wrong? What went wrong?

8. Complete the last two Follow the same process for columns C and D. Follow the same process for columns C and D. What problems did you encounter? What problems did you encounter? Correct Formulas (=c4*c5 and =d4/d5) Correct Formulas (=c4*c5 and =d4/d5)

9. Now Try This Lets see what happens when we change one of the numbers. Lets see what happens when we change one of the numbers. Click in cell A4 and type the number 37. Click in cell A4 and type the number 37. Watch what happens to A6 when you hit enter. Watch what happens to A6 when you hit enter. Try this for each of the operations. Try this for each of the operations. Did your formulas work? Did your formulas work? Your formulas should work and you should not have to do anything to recalculate your answers. Your formulas should work and you should not have to do anything to recalculate your answers.

10. Saving and Printing Save this worksheet to your folder as Excel Calculator Save this worksheet to your folder as Excel Calculator We now want to experiment with the printing options. We now want to experiment with the printing options. Click on File Click on File Click on Page Setup Click on Page Setup Click on the Sheet tab Click on the Sheet tab

11. Printing At this screen you can decide whether to show gridlines on your spreadsheet when you print it. If you want them to print, make sure that the box by gridlines is checked. At this screen you can decide whether to show gridlines on your spreadsheet when you print it. If you want them to print, make sure that the box by gridlines is checked.

12. Printing Notice that there is a print preview button on this screen, remember to use it to see what your page will look like. Also, check to be sure that you only have one page and not more than one. Notice that there is a print preview button on this screen, remember to use it to see what your page will look like. Also, check to be sure that you only have one page and not more than one. DO NOT print today! DO NOT print today!

13. Explore Use the rest of the time you have in class today to explore what you have learned about Microsoft Excel. Use the rest of the time you have in class today to explore what you have learned about Microsoft Excel. Also, use your time to study the answers to the questions from the previous days class. Also, use your time to study the answers to the questions from the previous days class. We will have a terminology test on Excel tomorrow. We will have a terminology test on Excel tomorrow.