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Addition Within 20 Worksheets

Generate printable Grade 1 addition worksheets within 20. Choose practice settings, preview questions and print an optional answer page.

Quick start
1 Choose a grade 2 Choose a preset 3 Generate & download
How it works

Choose a grade

Aligned to Common Core State Standards. United States

Presets

Start here: choose a grade above, then a preset.

Click Generate Worksheet for a print-ready file, then print or save it as PDF.

Preview
📄

Click "Generate Worksheet" to preview your worksheet here

Addition Within 20 Worksheets practice

Give Grade 1 learners repeated addition practice within 20. This page starts with addition facts that support fluency and keeps the worksheet ready for classroom printing.

Grade 1 · addition · fluency practice. Questions are generated locally in your browser, so the worksheet can be adjusted before printing.

Example questions

  • 7 + 8 = ____ Answer: 15
  • 9 + 6 = ____ Answer: 15
  • 4 + 5 = ____ Answer: 9

How to use this worksheet generator

  1. Choose whether to keep within-10 and within-20 skills selected.
  2. Use one or two columns when children need more space.
  3. Generate and print answer pages separately when needed.

Frequently asked questions

Is this timed?

No. It is a printable practice generator; set your own timing.

Can I use A4 paper?

Yes. The paper setting supports US Letter and A4.

Practice by skill

Choose Your Math Topic

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Addition

Practice addition skills from simple sums to multi-digit problems
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Subtraction

Build subtraction fluency with regrouping and borrowing
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Multiplication

Master multiplication facts and multi-digit operations
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Division

Practice division with and without remainders
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Fractions

Work with fractions, equivalents, and operations
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Decimals

Practice decimal operations and place value