Use this page when you want 1st grade addition to 10 worksheets in the next thirty seconds: choose how many problems you want, press print, and the answer key comes out on its own page behind the worksheet. A typical problem from the sheet in front of you is 2 + 3, which works out to 5; another is 7 + 2, giving 9.
‘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.
Addition is the first place a child meets the idea of a carried digit, and it is the skill every later algorithm leans on. A sheet like 2 + 3 looks small, but the habit it builds — line up the places, work right to left, record the carry — is the same habit that survives into multi-digit multiplication.
The problems here use sums up to 10, which keeps the arithmetic honest without turning the page into a copying exercise. 2 + 3 and 7 + 2 are typical of the range.
Fluency in addition is usually described in two parts: knowing the single-digit facts by recall, and applying a written method to bigger numbers. This sheet exercises whichever of the two the number range implies — for 2 + 3 the answer 5 should come from memory, not from counting.
Written addition is worth practising in columns — which is what these 1st grade addition to 10 worksheets ask for — even when a 1st grader can do it mentally, because the column layout is what makes four-digit work manageable later. A problem such as 4 + 1 is small enough to do mentally and worth writing out anyway.
In US classrooms these 1st grade addition to 10 worksheets are commonly aligned with the addition strand of most US state standards for this grade, though the exact wording varies from state to state.
| # | Problem | Answer | What to check |
|---|---|---|---|
| 1 | 2 + 3 = | 5 | Watch for: treating a longer number as a bigger one |
| 2 | 7 + 2 = | 9 | Check: adding right to left, then reading left to right |
| 3 | 3 + 4 = | 7 | Look at: forgetting the carried digit |
| 4 | 4 + 1 = | 5 | Ask about: counting on from the wrong number |
| 5 | 6 + 3 = | 9 | Watch for: guessing on the near-tens |
| 6 | 1 + 6 = | 7 | Check: losing the place columns |
Here is one worked through. 7 + 2 gives 9. If your child arrives somewhere other than 9 on 7 + 2, look at the working rather than the answer: nearly every wrong result comes from a skipped step, not an unknown fact.
The item 7 + 2 is worth doing slowly. The answer to 7 + 2 is 9, 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.
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.
Keys are produced by the same code that produces the questions, so a mismatch between question and answer is not possible on these sheets.
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.
If the problems look cramped, drop the count from 20 to a smaller number before printing these 1st grade addition to 10 worksheets; the font stays the same size and the spacing opens up.
Keep the finished 1st grade addition to 10 worksheets in date order — the drop in time across ten sheets is the clearest progress report you will get.
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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