Addition to 20 Practice Worksheet

What It Is:
A visual math worksheet that helps students understand how numbers combine to make 20. Using tens-frame style dot models, learners break apart 20 into two parts and write matching addition and subtraction facts.
Why Use It:
This worksheet strengthens number sense by helping students see 20 as a composed number. It supports part–whole relationships, early addition and subtraction, and fluency with numbers up to 20. The visuals make abstract concepts easier to grasp.
How to Use It:
• Count the dots in each tens frame to determine the two parts of 20.
• Write the part–part–whole numbers in the boxes provided.
• Complete the matching addition and subtraction equations.
• Use as a warm-up activity, math center task, partner work, or homework.
Grade Suitability:
Best suited for Grades 1–2.
• Students learning to decompose numbers to 20.
• Learners practicing addition and subtraction fact families.
Target Users:
Teachers, homeschool parents, and students building foundational addition and subtraction skills.