Performing basic computation (Microsoft Excel)

1. PERFORMING
BASIC
COMPUTATION

2. • How does Excel evaluate a formula?
Order of Evaluation:
1. Exponential
2. Multiplication and Division
3. Addition and Subtraction

3. • If a formula contains both a multiplication and
division operator, Excel evaluates the
operators from left to right.
SYMBOL OPERATION EXAMPLE
+ (Plus sign) Addition =C7+C8
- (Minus sign) Subtraction =C7-C8
* (Asterisk) Multiplication =C7*C8
/(Forward Slash) Division =C7/C8

4. Entering a formula
1. Click the cell you want a formula to be
entered.
2. Type = (Equal Sign).
3. Enter (type) a formula.
4. Press enter key on your keyboard.

5. Create a formula that contains a
function
1. Click cell A6.
2. Click the Insert Function on the formula bar.
3. Type the function you want to search on the
Search for function text box. Example: Sum
4. Click the Go button.

6. 5. Click to select the function you want to use.
6. Click OK button.
7. Click OK button on the Function Arguments
window.

7. Auto-calculate
1. Select a range of cells with numbers in them.
• When you select a range of cells with numbers
in them, Excel automatically calculate the
range of cells and displays its calculation at
the status bar. (located at the bottom of the
window).

8. • If you want to remove or add a type of
calculation Auto-correct performs, right click
anywhere in the status bar to open the Auto-
Calculate menu. Select among the available
options.

9. AUTO SUM
• You can add a range of cells instantly using the
Auto Sum button.
1. Select the cell range you want to add.
2. Click the Auto Sum button on the Editing
Group.

10. • You can also apply Auto Sum in another way.
1. Click the cell below your target range of cells.
2. Click Auto Sum button.
3. A marquee selection and formula will appear
in the worksheet. Press Enter key.

11. DISPLAYING FORMULA IN A
CELL
• By default, only formula results are displayed in the
cell. You can change the view of the worksheet to
display the formula by following these simple
steps:
1. Click the Formula tab and then on the Formula
auditing group, click show Formulas button.

12. • To return to the original screen display, click
the show formulas button again.

13. EDITING A FORMULA
• If you change your mind of what formula to
use, you can edit the formula by following
these steps:
1. Double click the cell that contains the
formula.

14. 2. Use the backspace or delete key to remove
the formula entry and then type the changes
you want.
3. Press Enter key.
Or you can use the Formula Bar to edit your
formula.

15. 1. Click cell D4. When you click the cell
containing a formula, the formula is
displayed on the formula bar.
2. Click the Formula Bar and then make the
necessary changes.
3. Press the Enter key when finished.

16. functions
• Functions are pre-designed formulas you can use
to perform a variety of calculations, from adding,
counting, etc.. Excel includes hundreds of
functions you can use for financial, engineering,
and other mathematical equations. Click the
Formulas tab and on the Function Library group,
click a function category you want to apply on
your computations.