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🔢 4th grade math · Counting & Numbers

Round big numbers

Find the two round numbers on either side, and the halfway point. At halfway or past it, round up. Before it, round down.

Worked example

Round 5,010 to the nearest 100.
Answer: 5,000
5,010 is between 5,000 and 5,100. Halfway is 5,050. It's below halfway, so round down to 5,000.
5,0005,0505,1005,010

For grown-ups: Round multi-digit numbers to any place. Below: three problems to try with the worked answers, and a free printable sheet. Children can practise the same skill as a game, with no sign-up and no ads.

  • CCSS 4.NBT.A.3
What this practises, for teachers

Practices round multi-digit numbers to any place (4.NBT.A.3). A printable sheet with its answer key, worked answers on the page, no accounts.

▶ Practise it

For your class

🖨️ Printable sheet and key

On the board with this skill:

Try three

  1. Round 17,444 to the nearest 1,000.
    Show the answer and how
    Answer: 17,000
    17,444 is between 17,000 and 18,000. Halfway is 17,500. It's below halfway, so round down to 17,000.
    17,00017,50018,00017,444
  2. Round 848,533 to the nearest 10,000.
    Show the answer and how
    Answer: 850,000
    848,533 is between 840,000 and 850,000. Halfway is 845,000. It's at or past halfway, so round up to 850,000.
    840,000845,000850,000848,533
  3. Round 339,885 to the nearest 10,000.
    Show the answer and how
    Answer: 340,000
    339,885 is between 330,000 and 340,000. Halfway is 335,000. It's at or past halfway, so round up to 340,000.
    330,000335,000340,000339,885

Before and after

Learn first: Big numbers to a million (4th)

Comes next: Powers of ten (5th)

Name: ____________________Date: ____________Score: ____ / 12

Round big numbers (4th grade)

  1. Round 13,580 to the nearest 1,000.
  2. Round 15,531 to the nearest 1,000.
  3. Round 8,982 to the nearest 100.
  4. Round 17,009 to the nearest 1,000.
  5. Round 19,941 to the nearest 1,000.
  6. Round 342,537 to the nearest 1,000.
  7. Round 206,579 to the nearest 10,000.
  8. Round 952,790 to the nearest 10,000.
  9. Round 190,641 to the nearest 10,000.
  10. Round 496,971 to the nearest 10,000.
  11. Round 673,896 to the nearest 10,000.
  12. Round 896,882 to the nearest 10,000.

Answer key

  1. 14,000
  2. 16,000
  3. 9,000
  4. 17,000
  5. 20,000
  6. 343,000
  7. 210,000
  8. 950,000
  9. 190,000
  10. 500,000
  11. 670,000
  12. 900,000

More 4th grade skills: all 4th grade math skills, or every grade at math skills.