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Multiplying decimals

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Transcript

  • 1. Monday, August 29th
    • Happy Monday!
    • 2. Please write down the homework
    • 3. Please complete the Warm Up
    Warm UP
    Write each decimal in standard form
    1. 2 and 25 hundreths 2. five tenths
  • 4. Corny Joke of the Day
    Why did the forgetful student never make it through Medical school?
    Because he couldn’t remember the order of operations
  • 5. Attention Attention!
    Test #2
    Thursday!!!!!!!!!!!
  • 6. Candy Winners
    Survivor
  • 7. Quiz
    Table of Contents
    Date: 8/29
    Section: 3.3
    Title: Decimal Quiz
    Page:
  • 8. Answers
    6 point a piece
    Hundreths
    Ten thousandths
    ones
    Tenths
    16.07, 16.6, 16.67
    1.09,1.19,1.9,1.901
    11.8
    9.44
  • 9. Answers
    6 point a piece
    9. 33.83 x 1.98
    10.5 ÷ 3.42
    11
    3.3
    5.7
    31
    15.4 was Dawn’s total score
  • 10. Mutliplying
    Decimals
  • 11. Table of Contents
    Date: 8/29
    Section: 3.5
    Title: Multiplying Decimals
    Page:
  • 12. Welcome To….
  • 13. Your Mission….
    To find out how much each plant will grow in 1 week
  • 14. First Part
    Multiplying a decimal by a decimal
  • 15. Recipe
    Write your decimals vertically
    Multiply your two numbers
    Add up the decimal places to the right of each number.
    Answer to step 3 is the amount of places you move your decimal to the left.
  • 16. Multiply, Then place the decimal point.
    1 decimal place
    + 1 decimal place
    2 decimal places
    Just Watch
    Find the product.
    0.5  0.2
    0.5

    0.2
    0.10
  • 17. You Try!
    a. 12.6 x 2.1
    Write your decimals vertically
    Multiply your two numbers
    Add up the decimal places to the right of each number.
    Answer to step 3 is the amount of places you move your decimal to the left.
  • 18. Practice makes perfect
    .3 x .4
    1.34 x 2.5
    d .07 x .8
    Complete and then help others in your group!
  • 19. Second Part
    Evaluating
  • 20. What does it mean?
    Who can find it first…..
    Ready, Set, Go
  • 21. What Ms. Evan’s found…
    Add to Own
    To find the value of a numerical or algebraic expression
  • 22. Steps to Evaluating
    Substitute value given wherever you see the variable
    Perform the given operation(s)
    M = 3
    3m
    3 x m
    3 x 3
    =9
  • 23. Evaluate each expression for x =4
    3 + x
    12 ÷ x
    4x
    x-3
  • 24. Now We’re Ready
    To Help the
    Heritage Center!
  • 25. In Your groups….
    Answer the 6 questions
    When done raise your hand for me to check
    Put both notes & Classwork in binder
    Start working on Homework: Worksheet p. 19