Testinar Grade 4 math

Rounding Multi-Digit Whole Numbers

Students will round multi-digit whole numbers to any specified place using place-value reasoning.

CH02-03 Number and Operations in Base Ten
Name
Date
Score
____ / 8
Directions Solve each problem. Show your reasoning on the page or on separate paper. Check the answer key only after finishing.

  1. What is \(45{,}782\) rounded to the nearest thousand?

    1. \(45{,}000\)
    2. \(45{,}800\)
    3. \(46{,}000\)
    4. \(50{,}000\)

  2. Round \(3{,}264\) to the nearest hundred.

    1. \(3{,}200\)
    2. \(3{,}000\)
    3. \(3{,}260\)
    4. \(3{,}300\)

  3. What is \(7{,}149\) rounded to the nearest ten?

    1. \(7{,}100\)
    2. \(7{,}000\)
    3. \(7{,}140\)
    4. \(7{,}150\)

  4. Which number rounds to \(5{,}000\) when rounded to the nearest thousand?

    1. \(4{,}499\)
    2. \(4{,}449\)
    3. \(5{,}550\)
    4. \(5{,}450\)

  5. Round \(8{,}756\) to the nearest hundred.

    1. \(8{,}700\)
    2. \(9{,}000\)
    3. \(8{,}756\)
    4. \(8{,}800\)

  6. What is \(12{,}389\) rounded to the nearest thousand?

    1. \(10{,}000\)
    2. \(12{,}400\)
    3. \(13{,}000\)
    4. \(12{,}000\)

  7. Round \(56{,}841\) to the nearest thousand.

    1. \(56{,}000\)
    2. \(60{,}000\)
    3. \(56{,}800\)
    4. \(57{,}000\)

  8. Round \(31{,}456\) to the nearest hundred.

    1. \(31{,}400\)
    2. \(31{,}000\)
    3. \(31{,}450\)
    4. \(31{,}500\)
Teacher and parent reference

Answer key and explanations

  1. C. \(46{,}000\)

    We're rounding to the nearest thousand. Look at the hundreds digit: \(7\). Since \(7 \geq 5\), we round UP! Change the thousands digit from \(5\) to \(6\), and the answer is \(\mathbf{46{,}000}\). \checkmark

  2. D. \(3{,}300\)

    We're rounding to the nearest hundred. Look at the tens digit: \(6\). Since \(6 \geq 5\), we round UP! The hundreds digit goes from \(2\) to \(3\), giving us \(\mathbf{3{,}300}\). \checkmark

  3. D. \(7{,}150\)

    We're rounding to the nearest ten. Look at the ones digit: \(9\). Since \(9 \geq 5\), we round UP! The tens digit changes from \(4\) to \(5\), so the answer is \(\mathbf{7{,}150}\). \checkmark

  4. D. \(5{,}450\)

    To round to the nearest thousand, check the hundreds digit in \(5{,}450\): it's \(4\). Since \(4 < 5\), we round DOWN to \(\mathbf{5{,}000}\). \checkmark

  5. D. \(8{,}800\)

    We're rounding to the nearest hundred. Look at the tens digit: \(5\). Since \(5 \geq 5\), we round UP! The hundreds digit goes from \(7\) to \(8\), giving us \(\mathbf{8{,}800}\). \checkmark

  6. D. \(12{,}000\)

    We're rounding to the nearest thousand. Look at the hundreds digit: \(3\). Since \(3 < 5\), we round DOWN and keep the thousands digit as \(2\), giving us \(\mathbf{12{,}000}\). \checkmark

  7. D. \(57{,}000\)

    We're rounding to the nearest thousand. Look at the hundreds digit: \(8\). Since \(8 \geq 5\), we round UP! The thousands digit changes from \(6\) to \(7\), so the answer is \(\mathbf{57{,}000}\). \checkmark

  8. D. \(31{,}500\)

    We're rounding to the nearest hundred. Look at the tens digit: \(5\). Since \(5 \geq 5\), we round UP! The hundreds digit changes from \(4\) to \(5\), giving us \(\mathbf{31{,}500}\). \checkmark

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