NameDate
Adding Within 20
Add.
11 + 9 =
1 + 5 =
13 + 0 =
2 + 15 =
5 + 15 =
12 + 0 =
8 + 3 =
9 + 4 =
1 + 10 =
11 + 7 =
12 + 4 =
13 + 7 =
11 + 6 =
10 + 5 =
3 + 9 =
5 + 12 =
6 + 13 =
3 + 7 =
1 + 11 =
2 + 1 =
Free · No sign-up · Answer key included
Addition Worksheets
AI Worksheet Maker's addition worksheet generator is free, needs no sign-up, and prints each sheet with an answer key. It makes addition from within 5 in kindergarten to two-digit addition with regrouping in 2nd grade, and mixes addition with subtraction up to five digits in 4th, with 10 to 50 problems per sheet.
1st gradeAdd within 2020 problems
Click the title or instructions to edit them. Changes print as shown.
Addition Worksheet Examples
Click one to open it in the generator, then change the count or layout.
Addition by Grade
Kindergarten adds within 5 and then within 10 (K.OA.A). 1st grade adds within 20 and adds a one-digit number to a two-digit one (1.OA.C.6, 1.NBT.C.4). 2nd grade adds two-digit numbers, first without regrouping and then with it (2.NBT.B.5). From 3rd grade, addition comes mixed with subtraction on three-digit and then multi-digit numbers.
How to Make an Addition Worksheet
Pick the grade and skill
Within 5 or 10 in kindergarten, within 20 in 1st grade, two-digit addition in 2nd.
Set the problems
Choose 10, 20, 30 or 50 problems, across or stacked, and turn regrouping on or off. Press New problems for a fresh set.
Print it with the key
Print or save as PDF on Letter or A4. The answer key prints on its own page.
Tips for Addition Practice
Young children add best with something to count: fingers, a number line or ten-frames, before they move to facts from memory. Practice two-digit addition without regrouping until students line up the tens and ones without thinking, then turn regrouping on. Stacked problems help with place value; problems across a line help children see addition as a number sentence.
Every answer checked by code
Problems and answers are worked out by code, not by AI, so the answer key is always right. A sheet has no repeated problems, and the same link always rebuilds the same set.
- Kindergarten to 4th grade
- Regrouping on or off
- Answer key on its own page
- 10 to 50 problems per sheet
Addition Worksheet FAQ
Are these addition worksheets free?
Yes. This addition worksheet generator is free, with no sign-up and no limit. Make as many printable addition worksheets as you like and print them or save a PDF on Letter or A4, each with its answer key.
Can I make addition worksheets with regrouping?
Yes. Choose 2nd grade and Two-digit addition with regrouping. Turn Allow regrouping off for problems that never carry, so students can practice place value first.
Can I make addition worksheets for kindergarten?
Yes. Kindergarten has adding within 5 and within 10. Choose 10 problems for a first sheet, and turn on problem numbers to help children keep their place.
Do they come with an answer key?
Yes. Turn on Include answer key and the last page shows every problem with its answer in red.
Can I mix addition and subtraction?
Yes. Each grade from kindergarten to 4th has a skill that mixes both, such as adding and subtracting within 20 in 1st grade. For subtraction alone, use the subtraction worksheet generator.
Can I make multi-digit addition worksheets?
Yes. 3rd grade has three-digit addition and subtraction, and 4th grade has multi-digit addition and subtraction up to five digits, both with regrouping and both mixed with subtraction.