Reading and writing numbers (age 9+) · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.

Reading and writing big numbers

Mathematics · Number Representation & Place Value · ages 9-10
Name ______________________   Date ____________

  1. Raj says 548,301 is greater than 543,801 because 8 thousands beats 3 thousands. Is Raj right?

    Circle one:   True   False

  2. What is 403,072 in expanded form?

    • 400,000 + 3,000 + 70 + 2
    • 400,000 + 30,000 + 70 + 2
    • 40,000 + 3,000 + 70 + 2
    • 400,000 + 3,000 + 700 + 2

  3. How is 620,058 read in words?

    • six hundred twenty thousand, fifty-eight
    • six hundred twenty thousand, five hundred eight
    • sixty-two thousand, fifty-eight

  4. 543,801 is greater than 548,301.

    Circle one:   True   False

  5. Order these numbers from smallest to largest: 271,900, 270,999, 279,100, 271,090.

    • 271,090, 270,999, 271,900, 279,100
    • 270,999, 271,090, 271,900, 279,100
    • 270,999, 271,900, 271,090, 279,100

  6. Eve says 403,072 = 400,000 + 3,000 + 72. Is Eve right?

    Circle one:   True   False

  7. How do you write 403,072 in words?

    • Forty-three thousand and seventy-two
    • Four hundred and thirteen thousand and seventy-two
    • Four hundred and three thousand and seventy-two
    • Four hundred and three thousand and seven hundred and two

  8. What number is 1,000,000 + 300,000 + 40,000 added together? Type the number.

    Answer: ______________

  9. Ben ordered 456,020, 456,200, 456,999, and 465,000 from smallest to largest and wrote: 456,200, 456,020, 456,999, 465,000. What mistake did he make?

    • He mixed up the hundreds digit and put 456,200 before 456,020
    • He mixed up thousands and hundred-thousands
    • He forgot which number was largest

  10. Deva says the largest of 512,400, 521,400 and 502,140 is 521,400. Is Deva right?

    Circle one:   True   False

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Answer key

For grown-ups. Fold this page away before handing over the rest.

Reading and writing big numbers W1-mt_JwP9QFv6gQ-s1

  1. True · Raj is right: both have 54 ten thousands, then 8 thousands beats 3 thousands.
  2. 400,000 + 3,000 + 70 + 2 · The digits are worth 400,000, 3,000, 70 and 2.
  3. six hundred twenty thousand, fifty-eight · Read the first group (620) as six hundred twenty, say thousand, then read the last group (058) as fifty-eight.
  4. False · Both numbers start with 54, but the next digit is 3 in 543,801 and 8 in 548,301, so 548,301 is actually the greater number.
  5. 270,999, 271,090, 271,900, 279,100 · Compare digit by digit from the left: all four numbers share 27 at the start, so the thousands and hundreds digits break the tie.
  6. True · Eve is right: 400,000 + 3,000 + 72 rebuilds 403,072.
  7. Four hundred and three thousand and seventy-two · 403,072 is four hundred and three thousand and seventy-two.
  8. 1340000 · Add the place values in order: 1,000,000 + 300,000 + 40,000 = 1,340,000.
  9. He mixed up the hundreds digit and put 456,200 before 456,020 · 456,020 and 456,200 match until the hundreds place: 0 is less than 2, so 456,020 should come first.
  10. True · Deva is right: 521,400 has 2 ten thousands, beating 1 and 0.
Worksheet · LightMySky