If you need rounding decimals 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. Right now the generator is set to problems such as Round 40.71 to the nearest whole number (answer 41) and Round 75.65 to the nearest whole number (answer 76); press the button again and the numbers change while the skill stays the same.
‘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.
The digit being looked at changes from problem to problem, which stops the child from applying yesterday's position out of habit.
The rule about the digit to the right is a shortcut, not the concept. Children who only know the shortcut break down as soon as the number sits near a boundary, so it is worth asking 'which is it closer to?' at least once per sheet — on Round 75.65 to the nearest whole number, for instance.
Once rounding to a single place is automatic, estimation problems stop being a separate topic and become a two-second sanity check applied everywhere.
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.
In US classrooms these rounding decimals 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 40.71 to the nearest whole number = | 41 | Watch for: treating the 5 rule as arbitrary |
| 2 | Round 75.65 to the nearest whole number = | 76 | Check: rounding the wrong place |
| 3 | Round 6.26 to the nearest tenth = | 6.3 | Look at: changing every digit to the right instead of zeroing them |
| 4 | Round 69.67 to the nearest tenth = | 69.7 | Ask about: rounding down at the boundary |
| 5 | Round 62.23 to the nearest tenth = | 62.2 | Watch for: losing digits on the left |
| 6 | Round 68.41 to the nearest tenth = | 68.4 | Check: rounding twice |
Try Round 6.26 to the nearest tenth together before letting the child start alone. The answer to Round 6.26 to the nearest tenth is 6.3, and talking through how it was reached takes about a minute and saves several minutes of guessing later in the sheet.
The item Round 75.65 to the nearest whole number is worth doing slowly. The answer to Round 75.65 to the nearest whole number is 76, and the route to it is the route every other problem on this sheet takes — which is why the sheet has 20 of them rather than one.
Every generated sheet carries its own key on a separate printed page, which lets a child self-mark without seeing the answers while they work.
The answer key is generated with the worksheet, not written by hand, so it always matches the sheet in front of you — Round 40.71 to the nearest whole number is listed as 41, Round 75.65 to the nearest whole number as 76, and so on down the page.
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.
When these become easy, move along the related links below rather than adding more problems to the same sheet.
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