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Math Grade 2-3 Answer Key

Writing Numbers in Expanded Form

Practice showing the value of each digit

Answer Key
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Writing Numbers in Expanded Form

Practice showing the value of each digit

Math - Grade 2-3

Instructions: Read each problem carefully. Write each number in expanded form or standard form as asked. Show the value of each digit.
  1. 1

    Write 47 in expanded form.

    Find the value of the tens digit and the ones digit.

    The number 47 in expanded form is 40 + 7 because it has 4 tens and 7 ones.
  2. 2

    Write 82 in expanded form.

    The number 82 in expanded form is 80 + 2 because it has 8 tens and 2 ones.
  3. 3

    Write 135 in expanded form.

    Look at the hundreds, tens, and ones places.

    The number 135 in expanded form is 100 + 30 + 5 because it has 1 hundred, 3 tens, and 5 ones.
  4. 4

    Write 206 in expanded form.

    The number 206 in expanded form is 200 + 6 because it has 2 hundreds, 0 tens, and 6 ones.
  5. 5

    Write 390 in expanded form.

    You do not need to write + 0 in expanded form.

    The number 390 in expanded form is 300 + 90 because it has 3 hundreds, 9 tens, and 0 ones.
  6. 6

    Write 724 in expanded form.

    The number 724 in expanded form is 700 + 20 + 4 because it has 7 hundreds, 2 tens, and 4 ones.
  7. 7

    Write 1,248 in expanded form.

    Start with the thousands place and move to the right.

    The number 1,248 in expanded form is 1,000 + 200 + 40 + 8 because it has 1 thousand, 2 hundreds, 4 tens, and 8 ones.
  8. 8

    Write 3,509 in expanded form.

    The number 3,509 in expanded form is 3,000 + 500 + 9 because it has 3 thousands, 5 hundreds, 0 tens, and 9 ones.
  9. 9

    Write 6,070 in expanded form.

    Skip any place that has a zero.

    The number 6,070 in expanded form is 6,000 + 70 because it has 6 thousands, 0 hundreds, 7 tens, and 0 ones.
  10. 10

    What number is shown by 400 + 60 + 3?

    The expanded form 400 + 60 + 3 shows the number 463.
  11. 11

    What number is shown by 900 + 5?

    Remember to put a 0 in the tens place.

    The expanded form 900 + 5 shows the number 905 because there are 9 hundreds, 0 tens, and 5 ones.
  12. 12

    What number is shown by 2,000 + 300 + 80 + 1?

    The expanded form 2,000 + 300 + 80 + 1 shows the number 2,381.
  13. 13

    What number is shown by 5,000 + 40 + 6?

    Check which place value is missing.

    The expanded form 5,000 + 40 + 6 shows the number 5,046 because the hundreds place has a 0.
  14. 14

    Mia wrote 568 as 500 + 60 + 8. Is Mia correct? Explain your answer.

    Mia is correct because 568 has 5 hundreds, 6 tens, and 8 ones, so its expanded form is 500 + 60 + 8.
  15. 15

    A number has 4 thousands, 2 hundreds, 0 tens, and 9 ones. Write the number in expanded form and standard form.

    Use 0 as a placeholder for the tens place in standard form.

    The expanded form is 4,000 + 200 + 9, and the standard form is 4,209.
LivePhysics™.com Math - Grade 2-3 - Answer Key