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Rounding to the nearest ten worksheets

Round two-digit numbers to the nearest ten: Round 47 to the nearest ten. Three versions of twenty with answer keys, and no numbers that are already tens.

Rounding: to the nearest ten

NameDate

Round each number.

  1. Round 84 to the nearest ten:
  2. Round 93 to the nearest ten:
  3. Round 69 to the nearest ten:
  4. Round 62 to the nearest ten:
  5. Round 89 to the nearest ten:
  6. Round 39 to the nearest ten:
  7. Round 29 to the nearest ten:
  8. Round 35 to the nearest ten:
  9. Round 57 to the nearest ten:
  10. Round 66 to the nearest ten:
  11. Round 71 to the nearest ten:
  12. Round 11 to the nearest ten:
  13. Round 73 to the nearest ten:
  14. Round 74 to the nearest ten:
  15. Round 55 to the nearest ten:
  16. Round 52 to the nearest ten:
  17. Round 26 to the nearest ten:
  18. Round 85 to the nearest ten:
  19. Round 87 to the nearest ten:
  20. Round 41 to the nearest ten:
Sheet AFree at teach.peabody.kids

Rounding: to the nearest ten

NameDate

Round each number.

  1. Round 27 to the nearest ten:
  2. Round 79 to the nearest ten:
  3. Round 51 to the nearest ten:
  4. Round 53 to the nearest ten:
  5. Round 36 to the nearest ten:
  6. Round 49 to the nearest ten:
  7. Round 12 to the nearest ten:
  8. Round 24 to the nearest ten:
  9. Round 96 to the nearest ten:
  10. Round 59 to the nearest ten:
  11. Round 56 to the nearest ten:
  12. Round 14 to the nearest ten:
  13. Round 21 to the nearest ten:
  14. Round 32 to the nearest ten:
  15. Round 34 to the nearest ten:
  16. Round 92 to the nearest ten:
  17. Round 17 to the nearest ten:
  18. Round 76 to the nearest ten:
  19. Round 15 to the nearest ten:
  20. Round 95 to the nearest ten:
Sheet BFree at teach.peabody.kids

Rounding: to the nearest ten

NameDate

Round each number.

  1. Round 99 to the nearest ten:
  2. Round 63 to the nearest ten:
  3. Round 23 to the nearest ten:
  4. Round 83 to the nearest ten:
  5. Round 47 to the nearest ten:
  6. Round 97 to the nearest ten:
  7. Round 46 to the nearest ten:
  8. Round 13 to the nearest ten:
  9. Round 43 to the nearest ten:
  10. Round 19 to the nearest ten:
  11. Round 44 to the nearest ten:
  12. Round 37 to the nearest ten:
  13. Round 65 to the nearest ten:
  14. Round 31 to the nearest ten:
  15. Round 28 to the nearest ten:
  16. Round 68 to the nearest ten:
  17. Round 33 to the nearest ten:
  18. Round 64 to the nearest ten:
  19. Round 98 to the nearest ten:
  20. Round 82 to the nearest ten:
Sheet CFree at teach.peabody.kids

Answer key

Sheet A

  1. 80
  2. 90
  3. 70
  4. 60
  5. 90
  6. 40
  7. 30
  8. 40
  9. 60
  10. 70
  11. 70
  12. 10
  13. 70
  14. 70
  15. 60
  16. 50
  17. 30
  18. 90
  19. 90
  20. 40

Sheet B

  1. 30
  2. 80
  3. 50
  4. 50
  5. 40
  6. 50
  7. 10
  8. 20
  9. 100
  10. 60
  11. 60
  12. 10
  13. 20
  14. 30
  15. 30
  16. 90
  17. 20
  18. 80
  19. 20
  20. 100

Sheet C

  1. 100
  2. 60
  3. 20
  4. 80
  5. 50
  6. 100
  7. 50
  8. 10
  9. 40
  10. 20
  11. 40
  12. 40
  13. 70
  14. 30
  15. 30
  16. 70
  17. 30
  18. 60
  19. 100
  20. 80
Answer keyFree at teach.peabody.kids

Rounding: 20 problems a sheet, 3 versions that do not repeat each other where the numbers allow.

How to use it

  1. Look at the sheet: it is a real, printable sheet. Switch between Sheet A, B and C, or press New numbers (N) for a fresh set.
  2. Change how many problems, how many versions, and whether the key prints. Settings stay in this browser; Share copies a link that rebuilds the same sheets.
  3. Press Print sheet A and key, or Print all. The answer key prints on its own page, so you can keep it back.

Ideas for class

  • Draw a number line from 40 to 50 on the board and mark the halfway point at 45. Place each number on it before deciding.
  • Ask students to circle the digit in the tens place and underline the digit to its right before they round.
  • Practice with 98, 99, and 96 together, so students meet the case that rounds up to a hundred.

Related

Questions

Why does 45 round up?

It is exactly halfway between 40 and 50, so either could be chosen. The standard convention taught in US schools is to round up, so the key does too.

Can I include hundreds?

Yes. The rounding to the nearest hundred sheet covers three-digit numbers, and the maker also has a version that mixes tens and hundreds.

Are the answer keys checked?

Each answer is worked out by the code that wrote the problem, and our tests recompute every answer a second way and compare. Please still look over the key before you grade a class set.

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What this worksheet covers

Rounding to the nearest ten asks which multiple of ten a number is closest to. The numbers on this sheet are two-digit numbers that are not already multiples of ten, so every question needs a decision. A number ending in 5 rounds up, which is the convention this sheet follows, and answers such as 100 appear for numbers like 98.

Who it is for

Third grade, under 3.NBT.A.1, which asks students to round whole numbers to the nearest 10 or 100 using place value. It follows a lesson on number lines and comes before rounding to hundreds.

Rounding two-digit numbers to the nearest ten · grade 3

A worked example

Round 47. It sits between 40 and 50, and 7 ones is more than half of a ten, so it is closer to 50. Round 43 and it is closer to 40. For 45, exactly in the middle, we agree to round up to 50.

Mistakes to watch for

  • Rounding the tens digit down always, so 47 becomes 40. Ask which ten is nearer.
  • Not knowing what to do with a 5. Teach the rule once, clearly, and display it on the wall.

Make it your own

This sheet is one setting of the math worksheet generator. Open it there to change the skill, the range of numbers or the heading, or to mix several skills on one sheet.