2. Rounding

3. When do you use rounding? When the question asks you to round. When the question asks you to estimate. When the question asks “about how many”…? To find out ABOUT what your answer should be.

4. Memorize this Poem Find your number. Look right next door. 4 or less just ignore. 5 or more, add 1 more.

5. Round this number to the nearest ten. Find your number. 9 7 8 Circle the number in the tens place.

6. Round this number to the nearest ten. Look right next door. 9 7 8 Draw an arrow to the right of the number.

7. Round this number to the nearest ten. 4 or less, just ignore. 9 7 8 8 is larger than 4 so go to the next line of the poem.

8. Round this number to the nearest ten. 5 or more, add 1 more. 9 7 8 Add 1 to the 7. +1

9. Round this number to the nearest ten. 5 or more, add 1 more. 9 8 0 Add 1 to the 7 and all the numbers to the right of the 8 become 0’s.

10. The Answer 978 rounded to the nearest ten is 980

11. Round this number to the nearest hundred. Find your number. 3 2 7 Circle the number in the hundreds place.

12. Round this number to the nearest hundred. Look right next door. 3 2 7 Draw an arrow to the right of the number.

13. Round this number to the nearest hundred. 4 or less, just ignore. 3 2 7 Since 2 is less than 4 we do not change the 3.

14. Round this number to the nearest hundred. 4 or less, just ignore. 3 0 0 Change the numbers to right of 3 to 0’s.

15. The Answer 327 rounded to the nearest hundred is 3 0 0

16. Let’s practice

17. Round this number to the nearest ten. 564 A. 560B. 500 C. 570 D. 600

18. Round this number to the nearest hundred. 1,792 A. 1,700B. 1,790 C. 1,800 D. 2,000

19. Round this number to the nearest ten. 406 A. 400B. 500 C. 410 D. 600

20. Round this number to the nearest hundred. 714 A. 720B. 710 C. 800 D. 700

21. Round this number to the nearest ten. 227 A. 200B. 230 C. 220 D. 300

22. Round this number to the nearest hundred. 1,131 A. 1,130B. 100 C. 1,100 D. 1,200

23. Round this number to the nearest ten. 911 A. 910B. 920 C. 900 D. 1,000

24. Round this number to the nearest hundred. 952 A. 900B. 1,000 C. 950 D. 960

25. Round this number to the nearest ten. 797 A. 790B. 700 C. 800 D. 710