Missing Addends within 50 | Math Addition Worksheet | First Grade Math

Help your students master addition with this fun and engaging Missing Addends within 50 worksheet! Designed for 1st and 2nd-grade learners, this resource encourages students to find the missing number in each addition sentence, promoting number sense, logical thinking, and fluency in addition within 50.

This no-prep worksheet is perfect for:

• Math centers
  
• Morning work
  
• Homework
  
• Small group instruction
  
• Early finishers
  

With 12 missing addend problems, students solve for the unknown number to complete the number sentence correctly. The bold layout and kid-friendly format make it easy to use and ideal for both classroom and home learning.

✅ What’s Included:

• 1 Printable PDF Worksheet (1 page)
  
• 12 Missing Addends Problems (within 50)
  
• Answer key included (if applicable – optional)
  

✏️ How to Use:

1. Print the worksheet.
   
2. Students solve each number sentence by finding the missing addend.
   
3. Can be used as independent practice, review, or informal assessment.
   
4. Encourage students to check their work with mental math or counting strategies.
   

Perfect for:

• 1st Grade Math
  
• 2nd Grade Math
  
• Special Education
  
• Homeschool
  
• Intervention groups