Every sheet of 2nd grade subtraction 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. The version loaded below opens with items in the shape of 95 − 24 and 36 − 15; the key lists 71 and 21 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.
Fluency here means the child can say why a column needed regrouping, not just that it did. Ask about the column that produced 36 and you will hear the difference immediately.
Subtraction is where arithmetic confidence is usually won or lost. The written method itself is short, but it demands that the child hold a borrowed ten in their head while working on the next column — which is why 95 − 24 can take three times as long as an addition of the same size.
This sheet uses two-digit numbers, 30 to 99. That is deliberate: wide enough to force real regrouping, narrow enough that a child can still check the answer by adding back.
Every subtraction has an addition hiding inside it, and checking 36 − 15 by adding 21 back to the smaller number is the single most useful habit you can teach on this page.
Teachers usually place 2nd grade subtraction worksheets alongside the subtraction strand of most US state standards for this grade, which is where the skill sits in the majority of US state frameworks.
| # | Problem | Answer | What to check |
|---|---|---|---|
| 1 | 95 − 24 = | 71 | Watch for: borrowing across a zero |
| 2 | 36 − 15 = | 21 | Check: reading the minus sign as a plus |
| 3 | 47 − 11 = | 36 | Look at: subtracting the smaller digit from the larger one |
| 4 | 33 − 18 = | 15 | Ask about: checking by re-subtracting |
| 5 | 49 − 17 = | 32 | Watch for: forgetting to reduce the column that was borrowed from |
| 6 | 53 − 11 = | 42 | Check: counting back one at a time |
Take the first problem on the sheet as it stands, 95 − 24. Work 95 − 24 out on paper rather than in your head the first few times, say each step aloud, and check the result against 71 on the key before moving on.
Try 47 − 11 together before letting the child start alone. The answer to 47 − 11 is 36, and talking through how it was reached takes about a minute and saves several minutes of guessing later in the sheet.
Answers appear next to their question numbers, so a wrong item like 36 − 15 can be found in the key in a second and re-worked while it is still fresh.
The answer key is generated with the worksheet, not written by hand, so it always matches the sheet in front of you — 95 − 24 is listed as 71, 36 − 15 as 21, and so on down the page.
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 95 − 24 from a neighbour.
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.
One sheet of 2nd grade subtraction worksheets a day for two weeks will tell you more about where a 2nd grader actually stands than any single long assessment.
→ Free 2nd 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