Round Multi-Digit Numbers - 4th Grade Math

1. Find and correct the rounding: $6{,}352$ rounded to nearest hundred was written as $6{,}300$.

   Correct result: $6{,}400$. The tens digit $5$ means round up, not down.

2. Find and correct the rounding: $2{,}639$ rounded to the nearest hundred is written as $2{,}600$.

   Correct rounding: $2{,}600$. Tens digit $3$ (less than $5$) correctly rounds down.

3. What does it mean to round a whole number to a given place value?

   Choose the nearest value at that place using the digit to the right. Look at the digit to the right to decide whether to round up or down.

4. What is $999{,}999$ rounded to the nearest thousand?

   $1{,}000{,}000$. All three $9$s round up, carrying to make $1{,}000{,}000$.

5. What is $6{,}482$ rounded to the nearest ten?

   $6{,}480$. The ones digit $2$ is less than $5$, so round down.

6. Identify the digit you check when rounding a number to the nearest ten.

   Check the ones digit. The ones place is immediately right of the tens place.

7. What is $444{,}444$ rounded to the nearest hundred thousand?

   $400{,}000$. Ten thousands digit is $4$ (less than $5$), so round down.

8. Identify the digit you check to round a number to the thousands place.

   The hundreds digit (the digit immediately to the right of the thousands digit). To round to thousands, check the hundreds digit.

9. What is $42{,}500$ rounded to the nearest thousand?

   $43{,}000$. The hundreds digit $5$ equals $5$, so round up.

10. What is $3{,}540{,}201$ rounded to the nearest million?

    $4{,}000{,}000$. The hundred-thousands digit $5$ equals $5$, so round up.

11. What is the rounding rule when the digit to the right is $0$ to $4$?

    Keep the rounding digit the same; change all digits to the right to $0$. When the next digit is less than $5$, round down.

12. What is $42{,}000$ rounded to the nearest thousand?

    $42{,}000$. Already at exact thousands, so it stays the same.

13. Identify the digit you check when rounding a number to the nearest thousand.

    Check the hundreds digit. The hundreds place is immediately right of the thousands place.

14. What is $78{,}500$ rounded to the nearest thousand?

    $79{,}000$. Hundreds digit is $5$, so round up to $79{,}000$.

15. What is $73{,}261$ rounded to the nearest hundred?

    $73{,}300$. The tens digit $6$ is greater than $5$, so round up.

16. Identify the digit you check when rounding a number to the nearest hundred.

    Check the tens digit. The tens place is immediately right of the hundreds place.

17. Find and correct the rounding: $2{,}650$ rounded to the nearest hundred is written as $2{,}600$.

    Correct rounding: $2{,}700$. Tens digit $5$ should round up, not down.

18. What is $999{,}999$ rounded to the nearest ten thousand?

    $1{,}000{,}000$. The thousands digit $9$ causes rounding up, creating a new place value.

19. What is $1{,}249{,}500$ rounded to the nearest hundred thousand?

    $1{,}200{,}000$. The ten-thousands digit $4$ is less than $5$, so round down.

20. What is $3{,}249$ rounded to the nearest hundred?

    $3{,}200$. Tens digit is $4$ (less than $5$), so round down.

21. What is $6{,}485$ rounded to the nearest ten?

    $6{,}490$. Ones digit is $5$, so round up to $6{,}490$.

22. What is $450{,}000$ rounded to the nearest hundred thousand?

    $500{,}000$. Ten thousands digit is $5$, so round up.

23. What is $78{,}499$ rounded to the nearest thousand?

    $78{,}000$. Hundreds digit is $4$ (less than $5$), so round down.

24. What is $73{,}249$ rounded to the nearest hundred?

    $73{,}200$. The tens digit $4$ is less than $5$, so round down.

25. What is $3{,}040{,}201$ rounded to the nearest million?

    $3{,}000{,}000$. The hundred-thousands digit $0$ is less than $5$, so round down.

26. State the rounding rule for a digit $0$-$4$ in the place to the right of the rounding place.

    Keep the rounding-place digit the same; change all digits right of it to $0$. When the next digit is $0$-$4$, we round down.

27. Which option shows $53{,}768$ rounded to the nearest thousand: $53{,}000$ or $54{,}000$?

    $54{,}000$. Hundreds digit is $7$ (greater than $5$), so round up.

28. What is $42{,}499$ rounded to the nearest thousand?

    $42{,}000$. The hundreds digit $4$ is less than $5$, so round down.

29. What is $508{,}499$ rounded to the nearest thousand?

    $508{,}000$. The hundreds digit $4$ is less than $5$, so round down.

30. What is $405{,}217$ rounded to the nearest ten thousand?

    $410{,}000$. Thousands digit is $5$, so round up to $410{,}000$.

31. State the rounding rule for a digit $5$-$9$ in the place to the right of the rounding place.

    Increase the rounding-place digit by $1$; change all digits right of it to $0$. When the next digit is $5$-$9$, we round up.

32. What is $6{,}485$ rounded to the nearest ten?

    $6{,}490$. The ones digit $5$ equals $5$, so round up.

33. What is $1{,}250{,}000$ rounded to the nearest hundred thousand?

    $1{,}300{,}000$. The ten-thousands digit $5$ equals $5$, so round up.

34. What is $3{,}250$ rounded to the nearest hundred?

    $3{,}300$. Tens digit is $5$, so round up to $3{,}300$.

35. What is $1{,}000{,}001$ rounded to the nearest million?

    $1{,}000{,}000$. Hundred thousands digit is $0$ (less than $5$), so round down.

36. What is the rounding rule when the digit to the right is $5$ to $9$?

    Increase the rounding digit by $1$; change all digits to the right to $0$. When the next digit is $5$ or more, round up.

37. Which place value is used when rounding $583{,}741$ to the nearest ten thousand?

    The ten-thousands place (digit $8$). The rounding digit is in the position being rounded to.

38. What is $6{,}482$ rounded to the nearest ten?

    $6{,}480$. Ones digit is $2$ (less than $5$), so round down.

39. What is $508{,}999$ rounded to the nearest thousand?

    $509{,}000$. The hundreds digit $9$ is greater than $5$, so round up.

40. Which option shows $120{,}499$ rounded to the nearest ten thousand: $120{,}000$ or $130{,}000$?

    $120{,}000$. Thousands digit is $0$ (less than $5$), so round down.

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