If you need 3rd grade rounding worksheets that you can print right now, this page builds them for you — 20 fresh problems, an answer key underneath, and no account to create first. The version loaded below opens with items in the shape of Round 197 to the nearest ten and Round 4,326 to the nearest hundred; the key lists 200 and 4,300 next to their question numbers.
‘New set of problems’ opens the generator in its own tab. There you can change the problem count and turn the answer key on or off. ‘Print or save as PDF’ opens the print dialog — choose Save as PDF in the printer list to keep the file. The sheet fits US Letter and A4, and the answer key prints on its own page.
Rounding is also the fastest way to check any other calculation. A child who can round the two numbers in a multiplication before doing it will notice a wildly wrong answer immediately.
The digit being looked at changes from problem to problem, which stops the child from applying yesterday's position out of habit.
This page uses numbers up to 989, and it deliberately avoids exact multiples and exact halfway points where the rule would be ambiguous, which is why a line such as Round 102 to the nearest ten turns up.
Rounding is the arithmetic skill adults actually use most, and a question like Round 197 to the nearest ten — answer 200 — is the whole idea in one line: which multiple is this number nearer to?
In US classrooms these 3rd grade rounding worksheets are commonly aligned with the rounding and estimation expectations for this grade, though the exact wording varies from state to state.
| # | Problem | Answer | What to check |
|---|---|---|---|
| 1 | Round 197 to the nearest ten = | 200 | Watch for: losing digits on the left |
| 2 | Round 4,326 to the nearest hundred = | 4,300 | Check: changing every digit to the right instead of zeroing them |
| 3 | Round 967 to the nearest ten = | 970 | Look at: rounding down at the boundary |
| 4 | Round 5,428 to the nearest hundred = | 5,400 | Ask about: treating the 5 rule as arbitrary |
| 5 | Round 102 to the nearest ten = | 100 | Watch for: rounding the wrong place |
| 6 | Round 8,017 to the nearest hundred = | 8,000 | Check: rounding twice |
Here is one worked through. Round 4,326 to the nearest hundred gives 4,300. If your child arrives somewhere other than 4,300 on Round 4,326 to the nearest hundred, look at the working rather than the answer: nearly every wrong result comes from a skipped step, not an unknown fact.
Try Round 967 to the nearest ten together before letting the child start alone. The answer to Round 967 to the nearest ten is 970, and talking through how it was reached takes about a minute and saves several minutes of guessing later in the sheet.
The key prints on its own page by default. Uncheck the answer-key box before printing if you would rather keep it back and mark the sheet yourself.
Because the numbers are random, there is no shared answer list to look up: the key printed behind your sheet is the only one that fits it, and it shows 200 for Round 197 to the nearest ten.
Printing works the same on US Letter and A4, because the layout uses relative widths rather than fixed inches. Set margins to default and scaling to 100%, and all 20 problems fit.
The sheet is laid out to fit one page on both US Letter and A4. Leave the browser scaling at 100% and turn headers and footers off, and the 20 problems land inside the margins on either paper size.
One sheet of 3rd grade rounding worksheets a day for two weeks will tell you more about where a 3rd grader actually stands than any single long assessment.
→ Free 3rd Grade Math Worksheets · → Free Rounding Worksheets
Free printable math worksheets from a working math academy director in Korea. Problems come from our own code, not from a published workbook. Every sheet prints on US Letter or A4 with its answer key. All worksheets · Worksheet generator · Korean site
Last updated: 2026-09-13