Addition

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Addition

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

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