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Writing Algebraic Expressions Writing Algebraic Expressions

Writing Algebraic Expressions - PowerPoint Presentation

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Uploaded On 2016-09-01

Writing Algebraic Expressions - PPT Presentation

SWBAT write an algebraic expression from a written expression Do Now Lauren bought a DVD at Best Buy The store was having a special with DVDs 10 off If she got the DVD for 18 what was the original price of the DVD ID: 458928

number expression write algebraic expression number algebraic write dvd product ten operations numerical numbers represent words expressions written

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Slide1

Writing Algebraic Expressions

SWBAT write an algebraic expression from a written expression.Slide2

Do Now

Lauren bought a DVD at Best Buy. The store was having a special with DVDs 10% off. If she got the DVD for $18, what was the original price of the DVD?

Make each of the following statements true with >, <, or =

2/5 3/6

0.0356 0.2306

0.625 3/8Slide3

Operations to Words

Draw a chart with the words that represent each operation. Write in PENCIL in case you make a mistake. You have 5 minutes and you may work with a partner.

Add

Subtract

Multiply

DivideSlide4

Practicing with Numbers

Write the following as a numerical expression.

The product of ten and seven.

The product of ten and five.

The product of 10 and a number.

Think→what can we use to represent a number when we don’t know the number?Slide5

Expressions

A

numerical expression

contains one or more numbers and operations.

Ex: 4 + 7 5 x 7 – 8

An

algebraic expression

contains at least one variable.

Ex: 4 + n 5t – 8 Slide6

Practice

The sum of ten and a number

10 + n

The quotient of a number and twelve.

n ÷ 12

Eleven decreased by five times a number.

11 – 5n Slide7

Exit Ticket

Write your own algebraic expression using n, 3, and 5. You must use at least 2 operations.

Translate your algebraic expression into written expression.