Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our User Agreement and Privacy Policy.

Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our Privacy Policy and User Agreement for details.

Successfully reported this slideshow.

Like this presentation? Why not share!

24,344 views

Published on

No Downloads

Total views

24,344

On SlideShare

0

From Embeds

0

Number of Embeds

54

Shares

0

Downloads

836

Comments

9

Likes

17

No notes for slide

- 1. Subtraction with Regrouping 3rd Grade Indiana Math Standard 3.2.1
- 2. 7 2 Name 6 4 8 3 3 1 6 0 4 2 2 5 7 3 8 2 7 5 2 1 9 3 5 0 7 1 4 3 9 1 2 0 5 2 3 3 6 2 9 4 3 2 4 4 7 0 Directions: For each problem, roll two dice. Write each number you roll in a box then solve.
- 3. 7 2 3 4 You can’t take 4 from 2 so you must regroup the 72.
- 4. 7 2 Let’s just think about the 72 for a minute. Remember the place value columns. tens ones Put 72 in expanded form: 70 + 2 You can borrow 10 from the 70 and give it to the 2 and still have 72. 7 0 6 0borrow 10 1 22 give 10 7 27 2 + +
- 5. Now let’s get back to the original problem. 7 2 3 4 You can’t take 4 from 2 so you must regroup the 72. 6 Borrow 1 ten from the 7. 12 Give the 1 ten to the 2 to make 12. Now subtract. 3 8 Let’s read the completed problem: 72 – 34 = 38 Remember you’re actually taking 10 from 70
- 6. 4 5 You can’t take 5 from 4 so you must regroup the 64. 6 5 Borrow 1 ten from the 6. 414 Give the 1 ten to the 4 to make 14. Now subtract. 1 9 Let’s read the completed problem: 64 – 45 = 19 Remember you’re actually taking 10 from 60
- 7. 313 Give the 1 ten to the 3 to make 13. 8 7 Borrow 1 ten from the 8. 2 6 You can’t take 6 from 3 so you must regroup the 83. Now subtract. 5 7 Let’s read the completed problem: 83 – 26 = 57 Remember you’re actually taking 10 from 80

No public clipboards found for this slide

Login to see the comments