This Addition Within 20 worksheet pack is designed to help students build strong addition skills using number lines and missing addends in a clear, structured, and student-friendly format.

Students practice adding within 20 while developing number sense, understanding fact families, and improving math fluency. The number line support helps students visualize addition and build confidence with math facts.

This resource is NO PREP—just print and go!

⭐ What’s Included

• 60 pages of addition worksheets
• Addition within 20
• Number line strategy on every page
• Missing addends / missing numbers problems
• Space for students to show their work
• Answer keys included
  

⭐ Skills Covered

• Addition within 20
• Using a number line
• Understanding missing addends
• Fact families
• Math fluency and problem-solving
  

⭐ Perfect For

• Grades 1–2
• Math centers
• Independent practice
• Morning work
• Homework
• Intervention & review
• Sub plans
  

⭐ Why Teachers Love It

✔ No prep
✔ Clear, consistent layout
✔ Visual number line support
✔ Builds addition confidence
✔ Saves planning time

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