Every sheet of 3rd grade 3 digit subtraction without regrouping worksheets on this page is built the moment you open it, so the 20 problems below are not the same ones the last visitor printed, and the answer key is generated with them. You will see items like 491 − 280 and 278 − 137 on the printed page, with 211 and 141 waiting on the answer key so nobody has to redo the arithmetic.
‘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.
There are two ways to think about a subtraction such as 491 − 280: taking away, or finding the difference. Children who only know the first find 211 slowly whenever the two numbers are close together.
Every subtraction has an addition hiding inside it, and checking 278 − 137 by adding 141 back to the smaller number is the single most useful habit you can teach on this page.
Because the sheet regenerates, the child meets the borrowing pattern in a different place each time, which is exactly what stops the method from being memorised as a sequence of pen strokes; 597 − 156 today will not borrow in the same column as tomorrow's sheet.
Fluency here means the child can say why a column needed regrouping, not just that it did. Ask about the column that produced 345 and you will hear the difference immediately.
In US classrooms these 3rd grade 3 digit subtraction without regrouping worksheets are commonly aligned with the subtraction strand of most US state standards for this grade, though the exact wording varies from state to state.
| # | Problem | Answer | What to check |
|---|---|---|---|
| 1 | 491 − 280 = | 211 | Watch for: counting back one at a time |
| 2 | 278 − 137 = | 141 | Check: borrowing across a zero |
| 3 | 688 − 343 = | 345 | Look at: checking by re-subtracting |
| 4 | 597 − 156 = | 441 | Ask about: reading the minus sign as a plus |
| 5 | 894 − 521 = | 373 | Watch for: forgetting to reduce the column that was borrowed from |
| 6 | 583 − 280 = | 303 | Check: subtracting the smaller digit from the larger one |
Here is one worked through. 278 − 137 gives 141. If your child arrives somewhere other than 141 on 278 − 137, look at the working rather than the answer: nearly every wrong result comes from a skipped step, not an unknown fact.
Try 688 − 343 together before letting the child start alone. The answer to 688 − 343 is 345, and talking through how it was reached takes about a minute and saves several minutes of guessing later in the sheet.
The answer key is generated with the worksheet, not written by hand, so it always matches the sheet in front of you — 491 − 280 is listed as 211, 278 − 137 as 141, and so on down the page.
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.
Portrait orientation is what the sheet is designed for. Landscape works but wastes about a third of the paper, so leave the orientation alone unless you have a reason.
For a class set, print one sheet, press the new-worksheet button and print again. Each child gets different numbers on the same skill, so nobody can copy the answer to 491 − 280 from a neighbour.
When these become easy, move along the related links below rather than adding more problems to the same sheet.
→ Free 3rd Grade Math Worksheets · → Free Subtraction 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