| A | B |
| Cell | Unique address of a cell that is the intersection of a column and a row |
| Active cell | This is the cell that is currently selected and where information will be dislayed |
| Protect sheet | this options keeps contents in cells from being deleted or changed |
| worksheet | spreadhseet used to enter, calculate, manipulate and analyze data |
| column heading | A column letter above the grid that identifies each column |
| functions | Pre-written formulas used to help compute statistics |
| colon : | used in a function to indicate the word "through" in a range of cells |
| #### | Cell is too small for value |
| xls | Extension given to all Excel files |
| = | all formulas and functions begin with this symbol |
| Formula | An instruction to calculate a number |
| Formula bar | place where formulas and fucntions are displayed when they are entered |
| SUM | Adds all values in a range of cells |
| MIN | Indicates the lowest value in a range of cells |
| MAX | Indicates the highest value in a range of cells |
| / | division sign |
| AVERAGE | Averages values in a range of cells |
| >= | Greater than or equal to |
| <= | Less than or equal to |
| = | Indicates the beginning of a formula |
| * | multiplication sign |
| > | Greater than |
| < | Less than |
| MIN, MAX, SUM, AVERAGE | Samples of functions |
| Range | A defined area of the worksheet such as A1:H20 |
| Freeeze Panes | this options lets you see column or row headings even when you scroll down the worksheet |
| gridlines | the vertical and horizontal lines on the worksheet |
| legend | lets you read the data on a chart |
| Tab key | moves one cell to the right |
| Shift+Tab keys | moves one cell to the left |