15
Algebra 1 of 4 Unit 6 Day 5 Mutliplying _ Dividing w Sci Notation.notebook 1 April 12, 2016 Algebra I 04/14/16 Aim: How Do We Multiply & Divide with Scientific Notation? HW#90 : Operations in Scientific Notation DO NOW Determine whether or not each of the following is in scientific notation. If it is not, put it in scientific notation. 1) 5.39 x 10 4 2) .486 x 10 3 3) 8 x 10 9 4) 10 x 10 5

Algebra 1 of 4 - Unit 6 - Day 5 - Mutliplying Dividing w ... · 9.04.2015 · Algebra 1 of 4 Unit 6 Day 5 Mutliplying _ Dividing w Sci Notation.notebook 2 April 12, 2016 1) 5.39 x

Embed Size (px)

Citation preview

Page 1: Algebra 1 of 4 - Unit 6 - Day 5 - Mutliplying Dividing w ... · 9.04.2015 · Algebra 1 of 4 Unit 6 Day 5 Mutliplying _ Dividing w Sci Notation.notebook 2 April 12, 2016 1) 5.39 x

Algebra 1 of 4 ­ Unit 6 ­ Day 5 ­ Mutliplying _ Dividing w Sci Notation.notebook

1

April 12, 2016

Algebra I                                    04/14/16Aim:  How Do We Multiply & Divide with Scientific Notation?HW#90: Operations in Scientific Notation

 DO NOWDetermine whether or not each of the following is in scientific notation.  If it is not, put it in scientific notation.1)  5.39 x 10­4

2)  .486 x 103

3)  8 x 109

4)  10 x 10­5

Page 2: Algebra 1 of 4 - Unit 6 - Day 5 - Mutliplying Dividing w ... · 9.04.2015 · Algebra 1 of 4 Unit 6 Day 5 Mutliplying _ Dividing w Sci Notation.notebook 2 April 12, 2016 1) 5.39 x

Algebra 1 of 4 ­ Unit 6 ­ Day 5 ­ Mutliplying _ Dividing w Sci Notation.notebook

2

April 12, 2016

1)  5.39 x 10­4

2)  4.86 x 103

3)  8 x 109

4)  10 x 10­5

4.86 x 102

1 x 10­4

Aim:  How Do We Multiply & Divide with Scientific Notation?HW#90: Operations in Scientific Notation

Page 3: Algebra 1 of 4 - Unit 6 - Day 5 - Mutliplying Dividing w ... · 9.04.2015 · Algebra 1 of 4 Unit 6 Day 5 Mutliplying _ Dividing w Sci Notation.notebook 2 April 12, 2016 1) 5.39 x

Algebra 1 of 4 ­ Unit 6 ­ Day 5 ­ Mutliplying _ Dividing w Sci Notation.notebook

3

April 12, 2016

200–400 billion stars

Milky Way Galaxy

The most current estimates guess that there are 100 to 200 billion 

galaxies in the Universe

Universe

Question : Approximately how many stars are there in the universe?Scientific Notation

Question of the Day

Aim:  How Do We Multiply & Divide with Scientific Notation?HW#90: Operations in Scientific Notation

Page 4: Algebra 1 of 4 - Unit 6 - Day 5 - Mutliplying Dividing w ... · 9.04.2015 · Algebra 1 of 4 Unit 6 Day 5 Mutliplying _ Dividing w Sci Notation.notebook 2 April 12, 2016 1) 5.39 x

Algebra 1 of 4 ­ Unit 6 ­ Day 5 ­ Mutliplying _ Dividing w Sci Notation.notebook

4

April 12, 2016

Multiplying Numbers in Scientific Notation(7 x 102) (4 x 105) 

    

= 28 x 107

**since this is all multiplication, does it matter what order we multiply the numbers in?

Commutative property  of multiplication

Question: What is wrong with this answer?

( 7 x 4 ) ( 102 x 105)

Aim:  How Do We Multiply & Divide with Scientific Notation?HW#90: Operations in Scientific Notation

Page 5: Algebra 1 of 4 - Unit 6 - Day 5 - Mutliplying Dividing w ... · 9.04.2015 · Algebra 1 of 4 Unit 6 Day 5 Mutliplying _ Dividing w Sci Notation.notebook 2 April 12, 2016 1) 5.39 x

Algebra 1 of 4 ­ Unit 6 ­ Day 5 ­ Mutliplying _ Dividing w Sci Notation.notebook

5

April 12, 2016

0.5(1.2 x 10­3) = (0.5  1.2) x 10­3     = 0.6 x 10­3

(2.8 x 107)(4.3 x 10­3)     

(2 x 104)(4 x 105)

Question : What is wrong with this solution?

Find each product in scientific notation1)  2) 

Fix it with a partner

Aim:  How Do We Multiply & Divide with Scientific Notation?HW#90: Operations in Scientific Notation

Page 6: Algebra 1 of 4 - Unit 6 - Day 5 - Mutliplying Dividing w ... · 9.04.2015 · Algebra 1 of 4 Unit 6 Day 5 Mutliplying _ Dividing w Sci Notation.notebook 2 April 12, 2016 1) 5.39 x

Algebra 1 of 4 ­ Unit 6 ­ Day 5 ­ Mutliplying _ Dividing w Sci Notation.notebook

6

April 12, 2016

(2 x 104)(4 x 105)  = (2 x  4) x (104 x 105)     = 8 x 109    

(2.8 x 107)(4.3 x 10­3)     

1) Solutions

2) 

Aim:  How Do We Multiply & Divide with Scientific Notation?HW#90: Operations in Scientific Notation

Page 7: Algebra 1 of 4 - Unit 6 - Day 5 - Mutliplying Dividing w ... · 9.04.2015 · Algebra 1 of 4 Unit 6 Day 5 Mutliplying _ Dividing w Sci Notation.notebook 2 April 12, 2016 1) 5.39 x

Algebra 1 of 4 ­ Unit 6 ­ Day 5 ­ Mutliplying _ Dividing w Sci Notation.notebook

7

April 12, 2016

Dividing Numbers in Scientific Notation                  2 x 103

       8 x 108

        2                  8  

      0.25 x 10­5

     

=

=

x 10 3­8

Last Step????

 7.1 x 107   5 x 102

1) 

2) 

Aim:  How Do We Multiply & Divide with Scientific Notation?HW#90: Operations in Scientific Notation

Page 8: Algebra 1 of 4 - Unit 6 - Day 5 - Mutliplying Dividing w ... · 9.04.2015 · Algebra 1 of 4 Unit 6 Day 5 Mutliplying _ Dividing w Sci Notation.notebook 2 April 12, 2016 1) 5.39 x

Algebra 1 of 4 ­ Unit 6 ­ Day 5 ­ Mutliplying _ Dividing w Sci Notation.notebook

8

April 12, 2016

 7.1 x 107   5 x 102

1) 

2) 

Aim:  How Do We Multiply & Divide with Scientific Notation?HW#90: Operations in Scientific Notation

Page 9: Algebra 1 of 4 - Unit 6 - Day 5 - Mutliplying Dividing w ... · 9.04.2015 · Algebra 1 of 4 Unit 6 Day 5 Mutliplying _ Dividing w Sci Notation.notebook 2 April 12, 2016 1) 5.39 x

Algebra 1 of 4 ­ Unit 6 ­ Day 5 ­ Mutliplying _ Dividing w Sci Notation.notebook

9

April 12, 2016

Aim:  How Do We Multiply & Divide with Scientific Notation?HW#90: Operations in Scientific Notation

How do we multiply and divide expressions in scientific notation?

 7.1 x 107   5 x 102

(2.8 x 107)(4.3 x 10­3)     

Page 10: Algebra 1 of 4 - Unit 6 - Day 5 - Mutliplying Dividing w ... · 9.04.2015 · Algebra 1 of 4 Unit 6 Day 5 Mutliplying _ Dividing w Sci Notation.notebook 2 April 12, 2016 1) 5.39 x

Algebra 1 of 4 ­ Unit 6 ­ Day 5 ­ Mutliplying _ Dividing w Sci Notation.notebook

10

April 12, 2016

Exit Slip1) Write in scientific notation

0.000034

2) Write in correct scientific notation14.5 * 105

3) Find the quotient of 4.2*106 and 8.4*103

Aim:  How Do We Multiply & Divide with Scientific Notation?HW#90: Operations in Scientific Notation

Page 11: Algebra 1 of 4 - Unit 6 - Day 5 - Mutliplying Dividing w ... · 9.04.2015 · Algebra 1 of 4 Unit 6 Day 5 Mutliplying _ Dividing w Sci Notation.notebook 2 April 12, 2016 1) 5.39 x

Algebra 1 of 4 ­ Unit 6 ­ Day 5 ­ Mutliplying _ Dividing w Sci Notation.notebook

11

April 12, 2016

Exit Slip1) Write in scientific notation

0.000034

2) Write in correct scientific notation14.5 * 105

3) Find the quotient of 4.2*106 and 8.4*103

Aim:  How Do We Multiply & Divide with Scientific Notation?HW#90: Operations in Scientific Notation

Page 12: Algebra 1 of 4 - Unit 6 - Day 5 - Mutliplying Dividing w ... · 9.04.2015 · Algebra 1 of 4 Unit 6 Day 5 Mutliplying _ Dividing w Sci Notation.notebook 2 April 12, 2016 1) 5.39 x

Algebra 1 of 4 ­ Unit 6 ­ Day 5 ­ Mutliplying _ Dividing w Sci Notation.notebook

12

April 12, 2016

200–400 billion stars

Milky Way Galaxy

The most current estimates guess that there are 100 to 200 billion 

galaxies in the Universe

Universe

Question : Approximately how many stars are there in the universe?Scientific Notation

Question of the Day Re­Visited

Aim:  How Do We Multiply & Divide with Scientific Notation?HW#90: Operations in Scientific Notation

Page 13: Algebra 1 of 4 - Unit 6 - Day 5 - Mutliplying Dividing w ... · 9.04.2015 · Algebra 1 of 4 Unit 6 Day 5 Mutliplying _ Dividing w Sci Notation.notebook 2 April 12, 2016 1) 5.39 x

Algebra 1 of 4 ­ Unit 6 ­ Day 5 ­ Mutliplying _ Dividing w Sci Notation.notebook

13

April 12, 2016

# galaxies * # of stars per galaxy = total # of stars in the universe

Aim:  How Do We Multiply & Divide with Scientific Notation?HW#90: Operations in Scientific Notation

Page 14: Algebra 1 of 4 - Unit 6 - Day 5 - Mutliplying Dividing w ... · 9.04.2015 · Algebra 1 of 4 Unit 6 Day 5 Mutliplying _ Dividing w Sci Notation.notebook 2 April 12, 2016 1) 5.39 x

Algebra 1 of 4 ­ Unit 6 ­ Day 5 ­ Mutliplying _ Dividing w Sci Notation.notebook

14

April 12, 2016

Aim:  How Do We Multiply & Divide with Scientific Notation?HW#90: Operations in Scientific Notation

Page 15: Algebra 1 of 4 - Unit 6 - Day 5 - Mutliplying Dividing w ... · 9.04.2015 · Algebra 1 of 4 Unit 6 Day 5 Mutliplying _ Dividing w Sci Notation.notebook 2 April 12, 2016 1) 5.39 x

Algebra 1 of 4 ­ Unit 6 ­ Day 5 ­ Mutliplying _ Dividing w Sci Notation.notebook

15

April 12, 2016

mathsims.wordpress.comLesson Slides, Resources and More!

Get a head start on your Homework!!!