Do Now 2/16/10Do Now 2/16/10 Take out HW from last week.Take out HW from last week.

Punchline worksheets 11.6 & 11.7Punchline worksheets 11.6 & 11.7

Copy HW in your planner.Copy HW in your planner. Text p. 515, #4-52 multiples of 4Text p. 515, #4-52 multiples of 4 Quiz Sections 8.3 & 8.4 tomorrowQuiz Sections 8.3 & 8.4 tomorrow Chapter 8 Test (8.1-8.4) FridayChapter 8 Test (8.1-8.4) Friday

In your notebook, write the number one billion and one million as a In your notebook, write the number one billion and one million as a number. Then multiply the two of them together. What is your answer?number. Then multiply the two of them together. What is your answer?

HomeworkHomework Punchline worksheets 11.6 & 11.7 Punchline worksheets 11.6 & 11.7

““What Did Professor Utterbunk Say When Asked: What Did Professor Utterbunk Say When Asked: Have You Ever Heard of the Planet Saturn?”Have You Ever Heard of the Planet Saturn?”

I’M NOT SURE BUT IT HAS A FAMILIAR I’M NOT SURE BUT IT HAS A FAMILIAR RINGRING

““What Did People Say After Two Satellite Dishes What Did People Say After Two Satellite Dishes Got Married?”Got Married?”

THE WEDDING WAS DULL BUT THE THE WEDDING WAS DULL BUT THE RECEPTION WAS GREATRECEPTION WAS GREAT

Objective

SWBAT use scientific notation to represent numbers.

Scientific notationScientific notation is a form to is a form to write very large or very small write very large or very small numbers.numbers.

9106.5000,000,000,16.5000,000,600,5

Did you know that the population of the world is about 5,600,000,000? Did you know that the population of the world is about 5,600,000,000? Instead of writing this number with so many zeros, you can use the following Instead of writing this number with so many zeros, you can use the following form: form:

Section 8.4, “Use Scientific Notation”Section 8.4, “Use Scientific Notation”

Section 8.4, “Scientific Notation”

A number is written in scientific notation

if it has the form:

where c is greater than or equal to 1 but less than 10.

nc 10

3104.310004.3 3400Product form Scientific notation

4102.30001.02.3 00032.0**HINT: How many spots has the decimal point moved?**HINT: How many spots has the decimal point moved?

Standard form

Write the number in scientific notation.Write the number in scientific notation.

1)

2)

3)

4)

610562.4000,000,1562.4 000,562,4

310201.8001.0201.8 008201.0

Write the number in decimal form.Write the number in decimal form.

000,859000,10059.8 51059.8

000599.00001.099.5 41099.5

Multiplying with Scientific Notation

To multiply two numbers that are written in scientific notation, you can use the rule for multiplying powers with like bases.

)102.3( 5 )104( 6Find the product of and Find the product of and

Write the product

Reorder

Multiply

Write in scientific notation

)101042.3( 65 )102.3( 5 )104( 6

)10()8.12( 11121028.1

Evaluate Evaluate the quotient.the quotient. )108(

)102(6

3

Write the product

Write in scientific notation

)1025.0( 32105.2

Decimal Decimal formform250

6

3

10

10

8

2

Evaluate the product.Evaluate the product.

)103.0( 4 )106.0( 1Find the product of and Find the product of and

Write the product

Reorder

Multiply

Write in scientific notation

)10106.03.0( 14 )103.0( 4 )106.0( 1

)10()18.0( 56108.1

Decimal Decimal formform0000018.0

Evaluate Evaluate the quotient.the quotient. )106.1(

)102.1(3

4

Write the product

Write in scientific notation

)1075.0( 76105.7

Decimal Decimal formform000,500,7

3

4

10

10

6.1

2.1

Text p. 515, #4-52 multiples of 4Text p. 515, #4-52 multiples of 4Quiz Sections 8.3 & 8.4 tomorrowQuiz Sections 8.3 & 8.4 tomorrowChapter 8 Test (8.1-8.4) FridayChapter 8 Test (8.1-8.4) Friday

HomeworkHomework