Use this page when you want 2 digit addition 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. Two of the problems on the sheet as it stands are 53 + 44 and 55 + 29 — answers 97 and 84 — and a new set is one click away.
‘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.
What separates a confident adder from a slow one is rarely the method; it is whether the number bonds underneath are automatic. Watch how long the child hesitates before writing the first digit of 84.
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 53 + 44 the answer 97 should come from memory, not from counting.
The problems here use two-digit numbers, 11 to 99, which keeps the arithmetic honest without turning the page into a copying exercise. 53 + 44 and 55 + 29 are typical of the range.
Written addition is worth practising in columns — which is what these 2 digit addition worksheets ask for — even when a child working at this level can do it mentally, because the column layout is what makes four-digit work manageable later. A problem such as 72 + 16 is small enough to do mentally and worth writing out anyway.
Work of this kind is commonly aligned with the addition strand of most US state standards for this grade; schools outside the US meet the same skill at roughly the same age, which is why these 2 digit addition worksheets travel well.
| # | Problem | Answer | What to check |
|---|---|---|---|
| 1 | 53 + 44 = | 97 | Watch for: adding right to left, then reading left to right |
| 2 | 55 + 29 = | 84 | Check: guessing on the near-tens |
| 3 | 45 + 21 = | 66 | Look at: forgetting the carried digit |
| 4 | 72 + 16 = | 88 | Ask about: treating a longer number as a bigger one |
| 5 | 73 + 23 = | 96 | Watch for: losing the place columns |
| 6 | 55 + 11 = | 66 | Check: counting on from the wrong number |
Take the first problem on the sheet as it stands, 53 + 44. Work 53 + 44 out on paper rather than in your head the first few times, say each step aloud, and check the result against 97 on the key before moving on.
Here is one worked through. 55 + 29 gives 84. If your child arrives somewhere other than 84 on 55 + 29, look at the working rather than the answer: nearly every wrong result comes from a skipped step, not an unknown fact.
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 97 for 53 + 44.
The answer key is generated with the worksheet, not written by hand, so it always matches the sheet in front of you — 53 + 44 is listed as 97, 55 + 29 as 84, 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 53 + 44 from a neighbour.
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.
Print a sheet of 2 digit addition worksheets, run it for 10 minutes, mark it together, and come back tomorrow for a different set of numbers on the same skill.
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