Addition Within 20
Addition Within 20. Solve each problem.
Addition Within 20
Addition Within 20. Solve each problem.
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About this worksheet
Addition Within 20 is a free, printable math worksheet for 1st Grade students. Addition Within 20. Solve each problem. It includes 16 math problems, plus a free printable answer key. This worksheet is aligned to Common Core standard 1.OA.6. Every worksheet is generated fresh, so there are 8 unique versions to print — perfect for extra practice, homework, or a full classroom set.
- Grade
- 1st Grade
- Subject
- Math
- Skill
- addition
- Questions
- 16
- Practice sets
- 8
- Answer key
- Yes — free
- Common Core
- 1.OA.6
This worksheet comes in 8 sets — each set is the same worksheet with different questions, so kids can practice the same skill again and again.
See more worksheets for Common Core 1.OA.6.
Frequently asked questions
Is the Addition Within 20 worksheet free?
Yes. Addition Within 20 is a free, printable math worksheet for 1st Grade, and it comes with a free answer key.
How many versions of this worksheet are there?
There are 8 sets. Each set is the same worksheet with different questions, so kids can practice the same skill again and again.
Do I need an account to download it?
No account is needed for your first 2 downloads. A free account removes the limit.
Can I play this worksheet as a game?
Yes — every Shiny Melon worksheet has a free game version you can play right in your browser.
Which Common Core standard does it cover?
It is aligned to Common Core 1.OA.6.
Show the answer key
Addition Within 20
Correct answers shown in coral.