1 6 multiplying and dividing real numbers n.
Download
Skip this Video
Download Presentation
1.6 Multiplying and Dividing Real Numbers

Loading in 2 Seconds...

play fullscreen
1 / 10

1.6 Multiplying and Dividing Real Numbers - PowerPoint PPT Presentation


  • 82 Views
  • Uploaded on

1.6 Multiplying and Dividing Real Numbers. Objective: SWBAT use the properties of multiplication and division. Mini Quiz 6. Simplify -5 + (-2) – (-3) Simplify Evaluate when m = 2 and n = -3. Properties of Multiplication. Identity Property of Multiplication For every real number n,

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about '1.6 Multiplying and Dividing Real Numbers' - inga-strickland


Download Now An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
1 6 multiplying and dividing real numbers

1.6 Multiplying and Dividing Real Numbers

Objective: SWBAT use the properties of multiplication and division.

mini quiz 6
Mini Quiz 6
  • Simplify -5 + (-2) – (-3)
  • Simplify
  • Evaluate when m = 2 and n = -3
properties of multiplication
Properties of Multiplication
  • Identity Property of Multiplication

For every real number n,

1 • n = n and n • 1 = n

  • Multiplication Property of Zero

For every real number n,

n • 0 = 0 and 0 • n = 0

  • Multiplication Property of -1

For every real number n,

-1 • n = -n and n • -1 = -n

  • Inverse Property of Multiplication

For every nonzero real number n, there is a multiplicative inverse such that

multiplying negatives
Multiplying Negatives

+

(+)(+) = ?

(–)(+) = ?

What about…

(–)(–)(–)(–)(–) = ?

(+)(–) = ?

(–)(–) = ?

+

*Odd number of negatives = -

Even number of negatives = +

multiplying numbers
Multiplying Numbers

36

  • -9(-4) =
  • 4(-6) =
  • -4.9(-8) =

-24

39.2

try these
Try These…

Evaluate each expression for c = -8 and d = -7

  • -2cd
  • (-2)(-1)(cd)
  • c(-d)

-112

112

-56

exponential expressions
Exponential Expressions

Write in Expanded Form and Simplify:

(-3)(-3)(-3)(-3)

= 81

-3•3•3•3

= -81

(-0.3)(-0.3)

= 0.09

dividing numbers
Dividing Numbers
  • -42 ÷ 7 =
  • -8 ÷ (-2) =
  • 8 ÷ (-8) =
  • -39 ÷ (-3) =

-6

4

-1

13

division using the reciprocal
Division Using the Reciprocal

17. Evaluate for

and

wrap up
Wrap Up
  • Properties of Multiplication
  • Multiply Positive and Negative Numbers
    • (+) (+) = +
    • (+) (–) = –
    • (–) (+) = –
    • (–) (–) = +
  • Exponential Expressions
  • Dividing Positive and Negative Numbers
  • Dividing Fractions

Homework: P. 41 #1-61 EOO, 101-109 odd

Write a DLUQ and answer the Question:

If you multiply an even number of negatives, is the answer positive or negative?

ad