Principles of Information Technology

Working with the Excel Environment 

Excel allows us to calculate numerical information using formulas. In Module 2, we learn how to use cell references to create formulas. In order to create a formula, we need to learn about Excel standard operators for formulas. These operators are a plus sign (+) for addition, a minus sign (-) for subtraction, an asterisk (*) for multiplication, a forward slash (/) for division, and a caret (^) for exponents. Excel uses = sign to start a formula, and that cell must be equal to the formula which is calculated for.




Excel 2013 uses features like the Ribbon and Quick Access toolbar to perform common tasks. The Ribbon in Excel 2013 uses a tabbed Ribbon system rather the traditional menu. Below is the description of the different tabs in Excel 2010-2013.

Understanding cell references

A cell is recognized by its address. The intersection of a columns and a row represent a cell address. For instance, column B and row 3 is the cell B3. The cell value is the value of what we calculate for a specific cell. For instance, if we B1 = 15, B2 = 25, then the value of B3 = B1+B2 or B3 = 15+25=40, therefore, the value of B3 = 40 as shown below.


In formula section we have, Fx =A1+A2

B1+B2= 40

Please review the following link and watch the following section videos.

Refer to tutorials at

  1. Formatting Cells
  2. Worksheet Basics
  3. Page Layout
  4. Printing Workbooks
  5. Simple Formula
  6. Complex Formulas
  7. Relative Absolute Cell References
  8. Functions

SLP Assignment 

Please note that SLP 2 Assignment has the following exercises and basic spreadsheet exercises from the Abacus Training site.

Use the table below to do the following.


= A1+A2+A3+A4

= B4 – B2

= C4/B2

= C3/5


Write the cell address according above table for the following:

Gas used for June36
Gas used for May45
Total used gas81
  1. Use the below table to calculate the total for each item; however, instead of manual work, use the formula function. For example, to calculate each item, you need to do the following.
  • Place = on the formula bar in the Total column
  • Multiple Quantity X Unit Price in the Total column
Fast Shop
ItemQuantityUnit priceTotal
Hot dog47$1.05
Ice bag11$2.21

After completing the Excel exercise above, please continue developing the Abacus Excel spreadsheet exercises located at and as noted below.

Exercise 1 – Sales for the Month

Exercise  2 – Sales and Produce Department

Exercise 3 – Mike’s Stationery Order

Create an Excel file with designated folders 1-4 to develop the above exercises.