addition within numbers to 1000 regrouping.pptx

addition with regrouping (carry)

1. Mathematics 2

2. Adding Without Regrouping

3. What is adding numbers?

4. Adding numbers is putting together two sets of things or people to form a new set.

5. We use the plus sign (+) to put together two or more numbers.

6. Adding With Regrouping

7. Steps in adding two-digit numbers with regrouping: Write the numbers in columns. Add the ones, then the tens, and the hundreds. Regroup as needed.

8. 47+38=

9. 47 +38

10. 1 47 +38 5

11. 1 47 +38 85

12. Example: 176 + 243= _____

13. 176 +243

14. 176 +243 9

15. 1 176 +243 19

16. 1 176 +243 419

17. Try This!!!

18. 263 +547

19. 11 263 +547 810

20. 345 +555

21. 11 345 +555 900

22. Mathematics 2