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10 printable sets · answer key on every set

Rounding Large Numbers Worksheets

  • CCSS 4.NBT.A.3
  • 20 problems per set
  • Answer key included

What this skill is

Rounding numbers up to a million to the nearest thousand, ten thousand or hundred thousand.

When it comes up: Fourth grade.

The mistake to watch for

Keeping the digits after the rounding place instead of replacing them with zeros.

How to help

Underline the digit in the rounding place, look at the digit right after it, then round up or stay.

Next: Estimating sums and differences.

A worked example

Round 48,362 to the nearest thousand. The thousands digit is 8. Look at the digit after it, 3. It is less than 5, so the 8 stays: 48,000. Round 48,762 and the 7 says round up: 49,000.

Words to know

round
To change a number to a nearby, easier number, like 683 to 680.
nearest
Closest. The nearest ten to 683 is 680.
thousand
Ten hundreds, written 1,000.
estimate
To find an answer that is close, without doing the exact work.
digit
One of the ten number symbols 0 to 9. The number 47 has two digits.

Practice

Round each number.

Showing Set 1 · 20 problems

  1. Round 974,875 to the nearest ten thousand.
  2. Round 374,463 to the nearest thousand.
  3. Round 498,595 to the nearest thousand.
  4. Round 266,990 to the nearest thousand.
  5. Round 840,656 to the nearest thousand.
  6. Round 41,581 to the nearest ten thousand.
  7. Round 110,638 to the nearest ten thousand.
  8. Round 380,054 to the nearest ten thousand.
  9. Round 928,515 to the nearest thousand.
  10. Round 341,880 to the nearest ten thousand.
  11. Round 761,866 to the nearest hundred thousand.
  12. Round 15,104 to the nearest thousand.
  13. Round 585,150 to the nearest ten thousand.
  14. Round 757,841 to the nearest thousand.
  15. Round 210,317 to the nearest hundred thousand.
  16. Round 831,250 to the nearest hundred thousand.
  17. Round 806,998 to the nearest thousand.
  18. Round 838,020 to the nearest hundred thousand.
  19. Round 851,362 to the nearest ten thousand.
  20. Round 961,467 to the nearest hundred thousand.

Download this set20 problems · answer key included PDF

Answer key
  1. 970,000
  2. 374,000
  3. 499,000
  4. 267,000
  5. 841,000
  6. 40,000
  7. 110,000
  8. 380,000
  9. 929,000
  10. 340,000
  11. 800,000
  12. 15,000
  13. 590,000
  14. 758,000
  15. 200,000
  16. 800,000
  17. 807,000
  18. 800,000
  19. 850,000
  20. 1,000,000

All 10 sets

Each set is a different list of 20 problems with its own answer key. Use the buttons above to look at one on this page, or download any of them as a PDF.

How these sheets were made
  • Problems are generated for each set and checked against 4.NBT.A.3 before the sheet is built — no duplicates, and every problem falls inside the standard's number range.

Common Core State Standards © 2010 National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.