Print free addition worksheets with answer keys, from single-digit facts to 2-digit and 3-digit addition with or without regrouping. Choose the digits, carrying, 2 to 4 numbers to add, vertical or horizontal problems and 10 to 100 problems per page, then download a PDF for US Letter or A4. Every sheet is new, so you never run out.
Quick answer: Addition worksheets practice adding numbers from single digits up to five-digit numbers, with answer keys. This page has free printable addition worksheets for kindergarten to grade 5: addition within 10 and 20, 2-digit addition with and without regrouping, 3-digit, 4- and 5-digit addition, doubles and word problems. Updated October 2026.
Free printable addition worksheets to print (PDF)
These free printable addition worksheets show what the generator prints: a page of 20 two-digit problems that all need regrouping, a timed drill of 30 single-digit facts, 3-digit addition, and the answer key. Click a picture for the PDF, or use the generator above to choose the digits, the carrying and the number of problems.
New: practice addition on a number line with hop-by-hop answer keys, or try the interactive frog number line.
Addition worksheets grade 2 and every other grade
| Grade | What children practice | Settings to use |
|---|---|---|
| Kindergarten | Adding within 5 and within 10 with objects and fingers | Sums up to 10, large print |
| Grade 1 | Addition facts within 20, fluent within 10 | Single-digit facts |
| Grade 2 | All single-digit facts from memory; 2-digit addition within 100; adding up to four 2-digit numbers | 2-digit with regrouping, three 2-digit numbers |
| Grade 3 | Adding within 1,000 fluently | 3-digit addition |
| Grade 4 | Multi-digit addition with the standard algorithm | 4-digit with regrouping |
Grades follow the Common Core math standards, for example 1.OA.C.6 (add within 20), 2.NBT.B.5 (add within 100), 2.NBT.B.6 (add up to four two-digit numbers), 3.NBT.A.2 (add within 1,000) and 4.NBT.B.4 (multi-digit addition). Each link opens the generator on this page with those settings.
Addition worksheets with regrouping (carrying)
Regrouping, also called carrying, happens when a column adds up to 10 or more. Take 47 + 38:
- Add the ones: 7 + 8 = 15. Write 5 in the ones column and carry the 1 ten to the tens column.
- Add the tens: 4 + 3 + 1 carried = 8.
- The answer is 85.
Addition without regrouping (for example 42 + 35) never has a column over 9, which is why it comes first. Choose No carrying or borrowing for beginners, Mixed for practice, and Every problem needs it to focus on regrouping. The generator checks every column of every problem, so the setting is always followed.
Double digit addition worksheets: how many problems carry?
The “Carrying” setting decides how many problems need regrouping. If you choose “Mixed”, the generator picks the two numbers at random, so the share of problems that carry depends on the size of the numbers. This table is counted from every possible pair of numbers, using the generator’s own rule that a problem carries when any column adds up to 10 or more:
| Problem type | Possible pairs of numbers | Pairs that need regrouping | Share with “Mixed” | Share with “No carrying” | Share with “Every problem” |
|---|---|---|---|---|---|
| 1-digit + 1-digit | 100 | 45 | 45% | 0% | 100% |
| 2-digit + 2-digit | 8,100 | 6,120 | 76% | 0% | 100% |
| 3-digit + 3-digit | 810,000 | 701,100 | 87% | 0% | 100% |
So in double digit addition worksheets on the “Mixed” setting, about 76% of the problems carry, and with 3-digit numbers about 87%. That is why “Mixed” is a good setting for practice, and “Every problem needs it” is better when a child needs extra work on carrying. A set with 1-digit facts is different: only 45% of single-digit pairs add up to 10 or more.
How many addition facts are there to learn?
There are 100 ordered pairs of single-digit numbers, from 0 + 0 to 9 + 9. But addition can be done in either order, so 3 + 8 and 8 + 3 are the same fact, which leaves 55 facts to learn. Children who know that the order does not matter have almost half as much to memorize. Three strategies cover most of them:
| Doubles | Near doubles (one more) | Make ten |
|---|---|---|
| 1 + 1 = 2 | 1 + 2 = 3 | 1 + 9 = 10 |
| 2 + 2 = 4 | 2 + 3 = 5 | 2 + 8 = 10 |
| 3 + 3 = 6 | 3 + 4 = 7 | 3 + 7 = 10 |
| 4 + 4 = 8 | 4 + 5 = 9 | 4 + 6 = 10 |
| 5 + 5 = 10 | 5 + 6 = 11 | 5 + 5 = 10 |
Doubles are easy to remember, a near double is one more than the double, and the make-ten facts are the building blocks of regrouping. For more strategies, see the addition strategies for kids guide, and for the history of the operation see Wikipedia’s addition article.
Free printable addition worksheets: how to choose the setting
- Pick the digits. Start with one digit for facts, two digits for column addition, and three or four digits for the standard algorithm.
- Pick the carrying. Use “No carrying” first, then “Mixed”, then “Every problem needs it”.
- Pick the layout. Vertical problems teach columns, and horizontal problems teach mental math.
- Pick the number of problems. Twenty problems suit a classroom page, thirty suit a fact drill, and one hundred make a five-minute drill.
- Print a different version. You can print up to five versions with the same settings, so neighbors cannot copy.
Types of addition worksheets you can print
- Addition facts: single-digit problems for fact fluency, with an optional timed drill box.
- Double-digit addition with or without regrouping.
- 3-digit and 4-digit column addition for the standard algorithm.
- Adding 3 or 4 numbers in a column.
- Horizontal addition (47 + 38 = ___) for mental math.
- Missing addend (47 + ☐ = 85) to link addition with subtraction.
- Mixed addition and subtraction on one page.
Tips for teaching addition
- Use objects, a number line or ten frames before worksheets for young children.
- Teach “make 10” facts (7 + 3, 6 + 4) early; they make carrying easy later.
- Ask children to say “carry the ten” aloud, so they understand the 1 is really 10.
- Use graph paper or the neat columns on these sheets to keep digits lined up.
- Mix in a few missing-addend problems so children think, not just follow steps.
Addition table: sums from 0 to 10
An addition table, also called an addition chart, lists every sum of two numbers. Find the row of the first number and the column of the second, and the sum is where they meet. Addition tables help children see patterns: every row goes up by one, and the table is the same on both sides of the diagonal because 3 + 7 is 7 + 3. Print this addition table for kindergarten and first grade, or use addition tables as a quick check when a child is stuck on a fact.
| + | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 1 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
| 2 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| 3 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| 4 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 |
| 5 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| 6 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| 7 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| 8 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| 9 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| 10 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
Single digit addition worksheets: the 100 basic facts
Single digit addition worksheets, also searched as single digit addition, adding single digits, add single digit numbers or addition of single digit numbers, cover the sums of two numbers from 0 to 9. There are 100 of these facts in all, but only 55 different ones once you count 4 + 7 and 7 + 4 as the same fact. The table shows how many ways there are to make each sum, which is why 9 is easy to find and 18 is rare:
| Sum | Ordered pairs of single digits | Different facts |
|---|---|---|
| 0 | 1 | 1 |
| 1 | 2 | 1 |
| 2 | 3 | 2 |
| 3 | 4 | 2 |
| 4 | 5 | 3 |
| 5 | 6 | 3 |
| 6 | 7 | 4 |
| 7 | 8 | 4 |
| 8 | 9 | 5 |
| 9 | 10 | 5 |
| 10 | 9 | 5 |
| 11 | 8 | 4 |
| 12 | 7 | 4 |
| 13 | 6 | 3 |
| 14 | 5 | 3 |
| 15 | 4 | 2 |
| 16 | 3 | 2 |
| 17 | 2 | 1 |
| 18 | 1 | 1 |
| All sums | 100 | 55 |
Free single digit addition worksheets start with the addition within 10 and addition within 20 pages, where children add numbers up to 10 and 20 with pictures and number lines.
Addition with regrouping worksheets and adding with regrouping worksheets
Addition with regrouping worksheets, addition with regrouping sheets and adding with regrouping worksheets are for problems where the ones add up to 10 or more, so a ten is carried to the next place. Start with 2-digit addition with regrouping and move to 3-digit addition once two-digit sums feel easy. Our 4 and 5 digit addition sheets build on the same carry.
Free addition worksheets, pages and printables
Everything on this page is free: free addition worksheets, free addition pages, free addition printables, free printable adding worksheets and simple adding worksheets, each with an answer key. An addition activity sheet works well as a warm-up before play, and our free math games let children practice the same facts on screen.
Practice it as a game
Free online games for the same skill: balloon pop, memory match, races and more. No sign-up.
Frequently asked questions
8 quick answers
Are these addition worksheets free?
Yes. Print as many as you need for home or school, with answer keys and no sign-up.
Do the addition worksheets have answers?
Yes. Each worksheet has an answer key page after it. Turn off “Answer key pages” if you do not want it.
What is the difference between addition with and without regrouping?
Without regrouping, no column adds up to more than 9. With regrouping, at least one column adds up to 10 or more, so you carry a ten (or hundred) to the next column.
What addition should a 2nd grader know?
By the end of grade 2, children are expected to know all sums of two one-digit numbers from memory, add fluently within 100 and add up to four two-digit numbers.
Can I make addition worksheets for kindergarten?
Yes. Use the “sums up to 10, large print” link in the table above, or choose Custom range with numbers from 0 to 5.
Can I print addition worksheets as a PDF?
Yes. Click Download PDF for US Letter or A4, or Print to send the pages straight to your printer.
Where can I download free addition worksheets?
Open any worksheet on this page or on a topic page, choose US Letter or A4, then print or save the PDF. All are free, with answer keys.
How many single digit addition facts are there?
There are 100 facts from 0 + 0 to 9 + 9, but only 55 different ones, because 3 + 6 and 6 + 3 are the same fact.
More math worksheets
- Subtraction worksheets with borrowing.
- Multiplication worksheets.
- Math worksheet generator for every operation.