1 5 divisibility 9 14 09 n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
1-5 Divisibility 9/14/09 PowerPoint Presentation
Download Presentation
1-5 Divisibility 9/14/09

Loading in 2 Seconds...

play fullscreen
1 / 11

1-5 Divisibility 9/14/09 - PowerPoint PPT Presentation


  • 112 Views
  • Uploaded on

1-5 Divisibility 9/14/09. Objective: use divisibility rules to solve division problems. Vocabulary. Dividend Number being divided Divisor Number dividing up the dividend Doing the dividing up Quotient The result of a division problem Divisible If the remainder is zero.

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 '1-5 Divisibility 9/14/09' - kyoko


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 5 divisibility 9 14 09

1-5 Divisibility 9/14/09

Objective: use divisibility rules to solve division problems

vocabulary
Vocabulary
  • Dividend
    • Number being divided
  • Divisor
    • Number dividing up the dividend
    • Doing the dividing up
  • Quotient
    • The result of a division problem
  • Divisible
    • If the remainder is zero
divisible by 5
Divisible by 5
  • Multiple of 5
    • Ends in 0 or 5
  • Name three numbers that are divisible by 5 (at least three digits)
divisible by 10
Divisible by 10

Ends in 0

Name three numbers that are divisible by 5 and 10 (at least three digits)

divisible by 2
Divisible by 2
  • Is the number even?
    • Meaning the number ends in 0, 2, 4, 6, 8
  • Which of the following numbers are divisible by 2?
    • 2,001
    • 422
    • 97,734
divisible by 3
Divisible by 3
  • The sum of the digits is divisible by 3
    • Add up all of the digits: 312
      • 3 + 1 + 2 = 6
    • Ask yourself if 3 goes into that number evenly
      • If the answer is yes, it is divisible by 3
      • 6 / 3 = 2
        • 312 is divisible by 3
  • Which of the following numbers are divisible by 3?
    • 456
    • 133
divisible by 6
Divisible by 6
  • If the number is divisible by 2 and 3
    • Check if the number is even
    • Check if the sum of the digits is divisible by 3
      • If the answer is yes to both questions, the number is divisible by 6
  • 942
    • Ends in 2, so it is even (divisible by 2)
    • 9 + 4 + 2 = 15 15/3 = 5 (divisible by 3)
    • Divisible by 6 because it passes the divisibility test for 2 and 3
  • Is 1,234 divisible by 6? Prove it!
    • Ends in 4, so it is divisible by 2
    • 1 + 2 + 3 + 4 = 10 (10 is not divisible by 3)
divisible by 9
Divisible by 9
  • The sum of the digits is divisible by 9
    • What rule is this similar to?
  • Name three numbers that are divisible by 9 (each number must be at least three digits)
divisible by 4
Divisible by 4
  • The last two digits are divisible by 4
    • 12,344
      • 44/4 = 11
    • 99,824
      • 24/4 = 6
  • Name two four-digit numbers that are divisible by 4
let s test the divisibility
Let’s Test the Divisibility
  • Are these numbers divisible by 2, 3, 6, 9? Prove it!
    • 144
    • 647
    • 2,294
today s activities
Today’s Activities
  • Finish Factor Practice sheet
  • Journal p. 10 and 14
  • Check in
  • Play Factor Captor
    • Boards on side counter
    • Use SRB to follow directions