Addition
Upcoming SlideShare
Loading in...5
×
 

Addition

on

  • 278 views

 

Statistics

Views

Total Views
278
Views on SlideShare
278
Embed Views
0

Actions

Likes
0
Downloads
3
Comments
0

0 Embeds 0

No embeds

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

Addition Addition Presentation Transcript

  • Addition Strategies
    Niky Hunt
    Cohort 22
    9/22/09
  • Standards
    NS 3.1 – solve addition and subtraction problems with large numbers
  • Addition
  • Jumping
  • Jumping
    Draw the Number Line
    Begin at your starting point
    Jump the number that will be added
    0+9=9
  • Jump the Friendly Tens
    Draw a number line
    Begin at your starting point
    Jump by tens until you reach your goal
    10+30=40
    10
    10
    10
    30
    40
    10
    20
  • Putting It All Together
    Draw a number line
    Begin at your starting point
    Jump by tens
    Jump the ones
    22+33=55
    10
    10
    10
    1
    1
    1
    32
    42
    53
    52
    55
    54
    22
  • Expanded Form
  • Adding with Tens
    Write each number in expanded form
    Add the tens
    Add the one
    Add the sum of each
    34+32
    30+4+30+2
    60+4+2
    60+6
    60+6=66
  • Adding with Hundreds
    Write each number in expanded form
    Add the hundreds
    Add the tens
    Add the one
    Add the sum of each
    362+234
    300+60+2+200+30+4
    500+60+2+30+4
    500+90+2+4
    500+90+6
    500+90+6=596
  • Adding with Thousands
    2362+5234
    2000+300+60+2+5000+200+30+4
    7000+300+60+2+200+30+4
    7000+500+60+2+30+4
    Write each number in expanded form
    Add the thousands
    Add the hundreds
    Add the tens
    Add the one
    Add the sum of each
    7000+500+90+2+4
    7000+500+90+6
    7000+500+90+6=
    7596
  • Splitting
  • Splitting with Tens
    Split only one of the numbers to be added
    Add the tens to the number left whole
    Add the ones
    34+47
    34+40+7
    74+7
    74+7=81
  • Splitting with Hundreds
    Split only one of the numbers to be added
    Add the hundreds to the number left whole
    Add the tens
    Add the ones
    234+647
    234+600+40+7
    834+40+7
    874+7
    874+7=881
  • Splitting with Thousands
    Split only one of the numbers to be added
    Add the thousands to the number left whole
    Add the hundreds
    Add the tens
    Add the ones
    8234+1647
    8234+1000+600+40+7
    9234+600+40+7
    9834+40+7
    9874+7=9881
  • References
    Images from Microsoft Clip Organizer