1. Subtracting With Place Value

2. Place Value to Subtract 1 10100 1,000 How many ones make a ten?

3. Place Value to Subtract 1 10100 1,000 How many tens make a hundred?

4. Place Value to Subtract 1 10100 1,000 How many hundreds make a thousand?

5. Place Value to Subtract Are the two amounts above worth the same? If I started with the picture on the left, how could I make the picture on the right?

6. Place Value to Subtract Are the two amounts above worth the same? If I started with the picture on the left, how could I make the picture on the right?

7. Place Value to Subtract Are the two amounts above worth the same? If I started with the picture on the left, how could I make the picture on the right?

8. Place Value to Subtract If I started with the picture on the left, how could I make the picture on the right?

9. 389 - 122 389 - 122 762 1 2 2

10. 267 389 - 122 389 - 122

11. 443 - 235 443 - 235 2 5 3 4 3 13

12. 443 - 235 443 - 235 2 5 3 8 0 2

13. 208 443 - 235 443 - 235

14. You try! 764 - 592 You do the work on your whiteboard. Then, we will look over it together on my big whiteboard. Remember to draw the first number 1 st !

15. You try! 764 – 592 = 172

16. Subtracting with the Standard Algorithm

17. 627 - 235 627 - 235 627 - 235

18. 627 - 235 627 - 235 627 - 235 2 Can I take 3 away from 2? Why not? What did we do with our place value blocks when this happened ?

19. 627 - 235 627 - 235 627 - 235 2 512 So, then let’s unbundle one of the 6 hundreds! What will that leave us with?

20. 627 - 235 627 - 235 627 - 235 92 512 So, then let’s unbundle one of the 6 hundreds! What will that leave us with?

21. 627 - 235 627 - 235 627 - 235 392 512 So, then let’s unbundle one of the 6 hundreds! What will that leave us with?

22. 392 627 - 235 627 - 235

23. Let’s try some together on the smartboard using your whiteboards!

24. Now let’s check your answers! 904 - 385 314 - 247 804 - 469 200 - 176 4,108 - 2,604 5,204 - 2,985

25. Put up your pencil and get out your red pen!

26. Now let’s check your answers! 904 - 385 519 314 - 247 67 804 - 469 335 200 - 176 24 4,108 - 2,604 1,504 5,204 - 2,985 2,219

27. If you missed 0 – 1: 1. Do the workbook page. 2. Keep it at your desk when you are done. 3. Play a math game. If you missed 2 – 3: 1. Find your mistakes and fix them. 2. If you know where you went wrong, do the workbook page. If you can’t find me. 3. Keep it at your desk. If time, play a math game. If you missed 4 – 6: Bring your workbook page and pencil to the back table.