.ZIP files

• Used to compress file sized– Compress: make smaller

• Used to keep files together

.ZIP files

• To uncompress a .zip file:– Right click and drag to where you want them– Select “Extract”

• To create a .zip file:– Select all files to be .zip’ed– Right clickSend toCompressed (zipped) folder

.ZIP exercise

• Go to My ComputerC:PSSendFile

• Unzip the 2 .zip files there

• All class work will be in these folders.

Formulae Basics

• + to add• - to subtract• / to divide• * to multiply• % to make a percentage• = to make equals

Formulae Basics 2

• ( ) Brackets are the first priority • / Division is next• * Multiplication• + Addition and finally• Subtraction is the last priority

Formulae with Cell Reference

• Cell names can be used as variables.

• C1=3• D1=4• E1=5• Select F1; input in the formula bar

“=(C1+D1)/E1”

Adding Cell Names Automatically

• You don’t have to type every one

• Click!

Drag Handles and Formulae

• You can drag formulae as well as numbers

• Cell references will automatically change

Functions

• Pre-set formulae

• SUM function – adds up a column

• =A1+A2+A3+A4• =SUM(A1:A4)

• (A1:A4) is called a range

Personal Expenses 2, Concluded

• Select cell B10• In the forumla bar: =SUM(B4:B9)

AutoSum

• Select cell C10• Click the AutoSum button (Sigma button)

The AutoSum

Button

Personal Expenses 3

• Please go to My ComputerPSSendFile

• Open “Personal Expenses 3” and follow the instructions.

Accessing Other Functions

• In the toolbar, press fx button

• Check the menu and explanations

Other Common Functions

• AVERAGE

• MIN

• MAX

• IF/THEN

AVERAGE

• Simply finds the average

• Formula format=AVERAGE(A1:A10)

MIN

• Finds the minimum number in a range

• Formula format=MIN(A1:A10)

MAX

• Finds the highest number in a range

• Formula format=MAX(A1:A10)

IF/THEN

• Returns different values depending on the true/false situation

• Formula Format:=IF(G10>5351,"Warning Over Budget","OK Under

Budget")

Personal Expenses 4

• You know what to do…

Groceries Exercise

• Again!

International Academy Exercise

• Just one more!

• This one will be collected and graded. Follow all instructions carefully!