1. Subtraction with Base 10 Models Created by Jamie Unverzagt

2. Tens Ones 62 - 8 Let’s start with 62 and then take away 8.

3. Tens Ones 62 - 8 62 is 6 tens and 2 ones.

4. Tens Ones 62 - 8 Can you take away 8 ones?

5. Tens Ones 62 - 8 How can you get more ones?

6. Tens Ones 62 - 8 How many tens and ones do you have now? 512

7. Tens Ones 62 - 8 Now can you take away 8 ones? 512 How many ones are left? 4

8. Tens Ones 62 - 8 512 How many tens are left? 45

9. Tens Ones 41 - 13 41 is 4 tens and 1 one.

10. Tens Ones 41 - 13 Can you take away 3 ones?

11. Tens Ones 41 - 13 How can you get more ones?

12. Tens Ones 41 - 13 How many tens do you have now? 3

13. Tens Ones 41 - 13 How many ones do you have now? 311 Youhad 1got 10 more You had 1 one and you got 10 more.

14. Tens Ones 41 - 13 311 Do you still have 41 total? Explain. 102030 31 32 33 34 35 36 37 38 39 40 41

15. Tens Ones 41 - 13 311 YES! When you regroup, you still have the same amount. You just show it a different way! 102030 31 32 33 34 35 36 37 38 39 40 41

16. Tens Ones 41 - 13 Now can you take away 3 ones? 311 How many ones are left? 8

17. Tens Ones 41 - 13 311 Can you take away 1 ten? 8

18. Tens Ones 41 - 13 311 How many tens are left? 82

19. Tens Ones 24 - 5 114 Now Try This: 91 Excellent Job!

20. Tens Ones 30 - 12 210 Now Try This: 8 You’ve Got It! 1

21. Math Journal Topic: Explain how to solve 53 – 9 using pictures, numbers, and words. Will you have to regroup? Why or why not?