The worksheet generator on this page produces 2nd grade addition and subtraction worksheets with real, freshly randomised numbers — 20 of them per sheet by default — plus the answer key a parent or teacher needs to mark it quickly. The current sheet starts with problems like 36 + 63 and 67 − 52, and the answers (99 and 15) are printed on the key so marking takes about a minute.
‘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 sheet uses two-digit numbers, 11 to 99, so switching operations is the only new difficulty on the page.
Because the mix is randomised, the child cannot settle into a rhythm of 'all the pluses first'. That habit hides sign errors until test day, and a page containing both 36 + 63 and 67 − 52 makes it impossible.
This is the sheet to use when accuracy on each operation alone is already good but classwork still comes back with careless marks. Mixed practice on addition and subtraction is what closes that specific gap.
Watch the pace across the page rather than the total time. Children who slow down noticeably at each change of sign are still translating rather than recalling.
Work of this kind is commonly aligned with the addition and subtraction fluency expectations for this grade; schools outside the US meet the same skill at roughly the same age, which is why these 2nd grade addition and subtraction worksheets travel well.
| # | Problem | Answer | What to check |
|---|---|---|---|
| 1 | 36 + 63 = | 99 | Watch for: working the sheet out of order |
| 2 | 67 − 52 = | 15 | Check: carrying the previous operation forward |
| 3 | 71 + 12 = | 83 | Look at: regrouping when it is not needed |
| 4 | 81 − 64 = | 17 | Ask about: slowing to a crawl at every sign change |
| 5 | 24 + 30 = | 54 | Watch for: misreading a minus as part of the first number |
| 6 | 70 − 56 = | 14 | Check: skipping the check |
A good first problem to do together is 36 + 63, which comes out at 99. Do 36 + 63 once with the child narrating, then hand over the pencil and start the clock on the other 20 problems.
The item 67 − 52 is worth doing slowly. The answer to 67 − 52 is 15, 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.
Answers appear next to their question numbers, so a wrong item like 67 − 52 can be found in the key in a second and re-worked while it is still fresh.
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 99 for 36 + 63.
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 36 + 63 from a neighbour.
To save these 2nd grade addition and subtraction worksheets instead of printing them, choose 'Save as PDF' in the printer list. You get the worksheet and the answer key as a single PDF, on Letter or A4 depending on your printer settings.
Print a sheet of 2nd grade addition and subtraction worksheets, run it for 8 minutes, mark it together, and come back tomorrow for a different set of numbers on the same skill.
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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