Adding 0-20 Worksheets
Introducing the Part Part Whole Model
Grades: Kindergarten, 1st Grade

Matching Sums (up to 5)
Grades: Kindergarten

Matching Sums (up to 9)
Grades: Kindergarten

Adding 1 (10 questions)
Grades: 1st Grade, 2nd Grade

Adding 1 (20 questions)
Grades: 1st Grade, 2nd Grade

Adding 1 (50 questions)
Grades: 1st Grade, 2nd Grade

Adding 2 (10 questions)
Grades: 1st Grade, 2nd Grade

Adding 2 (20 questions)
Grades: 1st Grade, 2nd Grade

Adding 2 (50 questions)
Grades: 1st Grade, 2nd Grade

Adding 3 (10 questions)
Grades: 1st Grade, 2nd Grade

Adding 3 (20 questions)
Grades: 1st Grade, 2nd Grade

Adding 3 (50 questions)
Grades: 1st Grade, 2nd Grade

Adding 4 (10 questions)
Grades: 1st Grade, 2nd Grade

Adding 4 (20 questions)
Grades: 1st Grade, 2nd Grade

Adding 4 (50 questions)
Grades: 1st Grade, 2nd Grade

Adding 5 (10 questions)
Grades: 1st Grade, 2nd Grade

Adding 5 (20 questions)
Grades: 1st Grade, 2nd Grade

Adding 5 (50 questions)
Grades: 1st Grade, 2nd Grade

Addition and Subtraction Fact Families (up to 10)
Grades: 1st Grade

Addition Coloring (A) Single Digits
Grades: 1st Grade, 2nd Grade

Addition Coloring (B)
Grades: 1st Grade, 2nd Grade

Addition Tables up to 10
Grades: 1st Grade, 2nd Grade

Addition Tables up to 5
Grades: 1st Grade, 2nd Grade

Addition Wheels (adding 1)
Grades: 1st Grade, 2nd Grade

Addition Wheels (adding 2)
Grades: 1st Grade, 2nd Grade

Addition Wheels (Up to 10)
Grades: 1st Grade, 2nd Grade

Addition Wheels (Up to 17)
Grades: 1st Grade, 2nd Grade

Addition Wheels (Up to 3)
Grades: 1st Grade, 2nd Grade

Addition Wheels (Up to 7)
Grades: 1st Grade, 2nd Grade

Addition Wheels (Up to 9)
Grades: 1st Grade, 2nd Grade

Emoji Number Bonds to 20
Grades: 1st Grade

Matching Answers (A)
Grades: 1st Grade, 2nd Grade

Matching Answers (B)
Grades: 1st Grade, 2nd Grade

Printable Addition Worksheets (0–20) with Answer Keys
Download our printable adding 0–20 worksheets with answer keys right away to support your students in their early math practice. Each of our basic addition worksheets uses a step-by-step approach to help your children in Kindergarten, 1st Grade, and 2nd Grade, learn how to add numbers quickly and accurately. The activities include topics like- Adding 2, Adding 3, Addition Coloring (A) Single Digits, Addition Tables up to 10, Addition Wheels and more. These additional facts, with more than 30 worksheets are therefore ideal for school teachers, parents, and homeschoolers looking to support their learners and children. Practicing our math resources often will help your children be able to improve their number sense and build the important addition skills they will need for advanced math topics in future.
What Is Addition Within 20?
The core number skills, Addition within 20 means adding two numbers where the total is 20 or less. This important basic math skill helps your young students understand how numbers work together. Hence, addition is a key part of math learning in kindergarten, first grade and second grade. Children will learn to solve problems like 7 + 8 or 14 + 3 using different strategies. Sometimes they might use number lines, or otherwise they can also use different processes like count on fingers, or use objects. Mastering addition within 20 builds fluency and prepares students for other important number skills like- subtraction, place value, and more complex math later on.
Why Practice Adding Numbers to 20?
Practicing how to add numbers to 20 helps children build a strong math foundation. It teaches them to think flexibly and solve problems in different ways. Repeated practice also helps improve speed and accuracy. These skills are important for classroom learning and standardized tests. Our worksheets are carefully designed to support early learners and help them gain confidence in math. With colorful visuals and simple layouts, children stay engaged while learning to add. These printable PDFS are easy to use in both school and at home.
Real-Life Uses of Addition Within 20
Addition is a part of everyday life. Children use it when counting toys, adding up scores in games, or figuring out how much money they need at a store. Learning to add numbers within 20 gives them the tools to solve simple problems in real situations. It also helps build logical thinking and number sense. Our worksheets help make this learning fun and useful, with clear examples and hands-on practice. The more they use these skills, the more confident and capable they become with numbers.