1. Rounding Review
Copyright © 2009 Kelly Mott

2. Part 1: Rounding Nearest 10
Copyright © 2009 Kelly Mott

3. 23 Practice # 1: STEPS: Underline the place you are rounding to.
Circle the number to the right.
If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
Every number to the right of the underlined number becomes a zero.
Round to the nearest ten: 23
Hint for the Circled Number:
4 or less just ignore.
5 or more, add 1 more.
Copyright © 2009 Kelly Mott

4. 36 Practice # 2: STEPS: Underline the place you are rounding to.
Circle the number to the right.
If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
Every number to the right of the underlined number becomes a zero.
Round to the nearest ten: 36
Hint for the Circled Number:
4 or less just ignore.
5 or more, add 1 more.
Copyright © 2009 Kelly Mott

5. Part 2: Rounding Nearest 100
Copyright © 2009 Kelly Mott

6. 861 Practice # 1 STEPS: Underline the place you are rounding to.
Circle the number to the right.
If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
Every number to the right of the underlined number becomes a zero.
Round to the nearest hundred:
861
Hint for the Circled Number:
4 or less just ignore.
5 or more, add 1 more.
Copyright © 2009 Kelly Mott

7. 528 Practice # 2 STEPS: Underline the place you are rounding to.
Circle the number to the right.
If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
Every number to the right of the underlined number becomes a zero.
Round to the nearest hundred:
528
Hint for the Circled Number:
4 or less just ignore.
5 or more, add 1 more.
Copyright © 2009 Kelly Mott

8. Part 3: Rounding Nearest 1000
Copyright © 2009 Kelly Mott

9. 4,833 Practice # 1: STEPS: Underline the place you are rounding to.
Circle the number to the right.
If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
Every number to the right of the underlined number becomes a zero.
Round to the nearest thousand:
4,833
Hint for the Circled Number:
4 or less just ignore.
5 or more, add 1 more.
Copyright © 2009 Kelly Mott

10. 6,117 Practice # 2 : STEPS: Underline the place you are rounding to.
Circle the number to the right.
If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
Every number to the right of the underlined number becomes a zero.
Round to the nearest thousand:
6,117
Hint for the Circled Number:
4 or less just ignore.
5 or more, add 1 more.
Copyright © 2009 Kelly Mott

11. Part 4: Rounding Nearest 10 (3 digits)
Copyright © 2009 Kelly Mott

12. 439 Practice # 1 Round to the nearest ten:
STEPS:
Underline the place you are rounding to.
Write down the number(s) to the left of the underlined digit.
Circle the number to the right.
If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
Every number to the right of the underlined number becomes a zero.
Round to the nearest ten:
439
Hint for the Circled Number:
4 or less just ignore.
5 or more, add 1 more.
Copyright © 2009 Kelly Mott

13. 653 Practice # 2 Round to the nearest ten:
STEPS:
Underline the place you are rounding to.
Write down the number(s) to the left of the underlined digit.
Circle the number to the right.
If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
Every number to the right of the underlined number becomes a zero.
Round to the nearest ten:
653
Hint for the Circled Number:
4 or less just ignore.
5 or more, add 1 more.
Copyright © 2009 Kelly Mott

14. Part 5: Rounding Nearest 100 (4 digits)
Copyright © 2009 Kelly Mott

15. 8,633 Practice # 1: Round to the nearest hundred:
STEPS:
Underline the place you are rounding to.
Write down the number(s) to the left of the underlined digit.
Circle the number to the right.
If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
Every number to the right of the underlined number becomes a zero.
Round to the nearest hundred:
8,633
Hint for the Circled Number:
4 or less just ignore.
5 or more, add 1 more.
Copyright © 2009 Kelly Mott

16. 5,197 Practice # 2 : Round to the nearest hundred:
STEPS:
Underline the place you are rounding to.
Write down the number(s) to the left of the underlined digit.
Circle the number to the right.
If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
Every number to the right of the underlined number becomes a zero.
Round to the nearest hundred:
5,197
Hint for the Circled Number:
4 or less just ignore.
5 or more, add 1 more.
Copyright © 2009 Kelly Mott

17. Part 6: Rounding Nearest 1000 (5 digits)
Copyright © 2009 Kelly Mott

18. Practice # 1: 34,233 Round to the nearest thousand:
STEPS:
Underline the place you are rounding to.
Write down the number(s) to the left of the underlined digit.
Circle the number to the right.
If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
Every number to the right of the underlined number becomes a zero.
Round to the nearest thousand:
34,233
Hint for the Circled Number:
4 or less just ignore.
5 or more, add 1 more.
Copyright © 2009 Kelly Mott

19. Practice # 2: 64,909 Round to the nearest thousand:
STEPS:
Underline the place you are rounding to.
Write down the number(s) to the left of the underlined digit.
Circle the number to the right.
If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
Every number to the right of the underlined number becomes a zero.
Round to the nearest thousand:
64,909
Hint for the Circled Number:
4 or less just ignore.
5 or more, add 1 more.
Copyright © 2009 Kelly Mott

20. Part 7: Estimating Sums (Nearest 10)
Copyright © 2009 Kelly Mott

21. Practice # 7: Round to the nearest ten. Estimate each sum.
_ _
_ _
_ _
_ _ + + + +
Steps:
1. Round each to the nearest 10.
2. Then add.
Copyright © 2010 Kelly Mott

22. Practice # 8: Round to the nearest ten. Estimate each sum.
_ _
_ _
_ _
_ _ + + + +
Steps:
1. Round each to the nearest 10.
2. Then add.
Copyright © 2010 Kelly Mott

23. Part 8: Estimating Sums (Nearest 100)
Copyright © 2009 Kelly Mott

24. Practice # 2: Round to the nearest 100. Estimate each sum.
_ _ _
_ _ _
_ _ _
_ _ _ + + + +
Steps:
1. Round each to the nearest 100.
2. Then add.
Copyright © 2010 Kelly Mott

25. Practice # 3: Round to the nearest 100. Estimate each sum.
_ _ _
_ _ _
_ _ _
_ _ _ + + + +
Steps:
1. Round each to the nearest 100.
2. Then add.
Copyright © 2010 Kelly Mott

26. Part 9: Estimating Differences (Nearest 10)
Copyright © 2009 Kelly Mott

27. Practice # 2: Round to the nearest ten. Estimate the difference.
_ _
_ _
_ _
_ _ - - - -
Steps:
1. Round each to the nearest 10.
2. Then subtract.
Copyright © 2010 Kelly Mott

28. Practice # 3: Round to the nearest ten. Estimate the difference.
_ _
_ _
_ _
_ _ - - - -
Steps:
1. Round each to the nearest 10.
2. Then subtract.
Copyright © 2010 Kelly Mott

29. Part 10: Estimating Differences (Nearest 100)
Copyright © 2009 Kelly Mott

30. Practice # 2: Round to the nearest 100. Estimate the difference.
_ _ _
_ _ _
_ _ _
_ _ _ - - - -
Steps:
1. Round each to the nearest 100.
2. Then subtract.
Copyright © 2010 Kelly Mott

31. Practice # 3: Round to the nearest 100. Estimate the difference.
_ _ _
_ _ _
_ _ _
_ _ _ - - - -
Steps:
1. Round each to the nearest 100.
2. Then subtract.
Copyright © 2010 Kelly Mott

32. Does this make sense?
Copyright © 2009 Kelly Mott