1 / 22

Subtraction Across Zeroes

39. 13. 19. 10. 403 - 25. 200 - 99. Subtraction Across Zeroes. By Jamie Unverzagt. Hundreds Tens Ones. Let’s model 102 minus 38 . Begin by showing 102. 102. - 38. Hundreds Tens Ones. If you have 2 ones , can you take away 8 ones ?. 10 2.

hector
Download Presentation

Subtraction Across Zeroes

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. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 39 13 19 10 403 - 25 200 - 99 Subtraction Across Zeroes By Jamie Unverzagt

  2. Hundreds Tens Ones Let’s model 102 minus 38. Begin by showing 102. 102 - 38

  3. Hundreds Tens Ones If you have 2 ones, can you take away8 ones? 102 - 38

  4. Hundreds Tens Ones How can you get more ones? There are no tens to trade! 102 - 38

  5. Hundreds Tens Ones How many tens are in ahundred? 102 - 38

  6. Hundreds Tens Ones Good thinking! 102 1 Hundred is the same as 10 tens! - 38

  7. Hundreds Tens Ones 102 Now can you get more ones? - 38

  8. Hundreds Tens Ones 9 12 102 How many tens and ones now? - 38

  9. Hundreds Tens Ones 9 12 What’s the next step? 102 - 38 How many ones are left? 4

  10. Hundreds Tens Ones 9 12 What’s the next step? 102 - 38 How many tens are left? 6 4

  11. Hundreds Tens Ones Let’s model 203 minus 57. Begin by showing 203. 203 - 57

  12. Hundreds Tens Ones If you have 3 ones, can you take7 onesaway? 203 - 57

  13. Hundreds Tens Ones 10 tens + 10 tens = 20 tens If 10 tens are in one hundred, how many tens are in two hundreds? 203 - 57

  14. Hundreds Tens Ones 20 tens- 1 ten = 19 tens Can you trade one of the 20 tens for ones? How many tens are left? 203 - 57

  15. Hundreds Tens Ones 19 tens 19 That’s 19 tens left 203 which is the same as 1 hundred and 9 tens. - 57

  16. Hundreds Tens Ones 19 13 How many ones do you have now? 203 - 57

  17. Hundreds Tens Ones 19 13 What is 13 ones minus 7 ones? 203 - 57 6

  18. Hundreds Tens Ones 19 13 Finish subtracting. 203 You’ve Got It! - 57 1 4 6

  19. 39 10 400 Subtract Across Zeroes - 9 3 9 1

  20. 49 12 502 Subtract Across Zeroes - 14 4 8 8

  21. 5 10 Don’t regroup if you don’t have to! 608 Subtract Across Zeroes Slow Down! - 234 3 7 4

  22. 69 12 702 Subtract Across Zeroes - 213 4 8 9

More Related