Worksheet
Grade 1
Adding 3 Numbers with Word Problems
Worksheet · 1.OA.A.2
$1.50
Math · Curriculum resources
3-Digit Addition Worksheets and Activities
Explore our collection of 3-Digit Addition resources designed for grades 1 and 2. This hub offers worksheets, activities, and games that help students build fluency in adding three-digit numbers with and without regrouping. Whether you are teaching first graders or second graders, you will find materials that match your students' needs.
19 results
Worksheet
Grade 1
Adding 3 Numbers - Word Problems
Worksheet · 1.OA.A.2
Free
Worksheet
Grade 1
Addition Word Problems
Worksheet · 1.OA.A.2
$1.50
Worksheet
Grade 2
Multi step Place Value Word Problems
Worksheet · 2.OA.A.1
$1.50
Worksheet
Grade 2
Place Value Word Problems
Worksheet · 2.OA.A.1
$1.50
Worksheet
Grade 2
Add and subtract within 1000—Dragon Egg
Worksheet · 2.NBT.B.7
$1.50
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Worksheet
Grade 2
Magic Door Addition
Worksheet · 2.NBT.B.7
Free
Worksheet
Grade 2
Addition and Subtraction
Worksheet · 2.NBT.B.7
$1.50
Worksheet
Grades 2–3
3-Digit Addition (no regrouping) Color by Number — Dino's Delightful Cake Baking Adventure
Worksheet · 2.NBT.B.7
$1.50
Worksheet
Grades 2–3
3-Digit Addition (no regrouping) Color by Number — Animal face - Hippo
Worksheet · 2.NBT.B.7
$1.50
Worksheet
Grades 2–3
3-Digit Addition (no regrouping) Color by Number — Jolly Jelly Bean
Worksheet · 2.NBT.B.7
$1.50
Worksheet
Grades 2–3
3-Digit Addition (regrouping) Color by Number — Artic Animal Ringed Seal
Worksheet · 2.NBT.B.7
$1.50
Worksheet
Grades 2–3
3-Digit Addition (regrouping) Color by Number — Zoo Animal Koala
Worksheet · 2.NBT.B.7
$1.50
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$29.99/yr$49.99
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Worksheet
Grades 2–3
3-Digit Addition (regrouping) Color by Number — Jolly Jelly Bean
Worksheet · 2.NBT.B.7
$1.50
Worksheet
Grades 2–3
Add Hundreds Color by Number — Labrador in Kiddie Pool
Worksheet · 2.NBT.B.7
$1.50
Worksheet
Grades 2–3
Add Hundreds Color by Number — Monster with Crown
Worksheet · 2.NBT.B.7
$1.50
Worksheet
Grades 2–3
Add Hundreds Color by Number — Sleepy Monster
Worksheet · 2.NBT.B.7
$1.50
Worksheet
Grade 3
3 Digit Addition and Subtraction
Worksheet · 3.NBT.A.2
$1.50
Worksheet
Grade 3
Adding & Subtracting
Worksheet · 3.NBT.A.2
$1.50
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About these 3-Digit Addition worksheets and activities
In grade 1, students begin by adding three 1-digit numbers and solving simple word problems that build number sense and place value understanding. As they move into grade 2, the focus shifts to adding within 1000, including regrouping across hundreds, tens, and ones. Our resources cover both stages, with scaffolded practice that starts with no-regrouping problems and progresses to more complex regrouping.
Related concepts such as place value, word problems, and multi-step reasoning are woven throughout the activities. Students develop skills in mental math, problem-solving, and using addition strategies like breaking numbers into hundreds, tens, and ones. The page includes color-by-number sheets, story problems, and interactive digital games that make practice engaging and effective.
Using these in your classroom
Teachers can use this hub to differentiate instruction across a mixed-ability classroom. Choose no-regrouping worksheets for struggling learners and regrouping challenges for advanced students. Use the printable worksheets for independent practice, homework, or assessment, and assign digital activities for centers or small groups. The resources are also ideal for intervention, review, and whole-group lessons. With a mix of printable and digital options, you can easily adapt materials for any instructional setting, from literacy centers to math rotations.
Standards alignment
These resources align with Common Core standards for operations and algebraic thinking and number and operations in base ten across grades 1 and 2, covering skills such as adding within 100 and within 1000, understanding place value, and solving word problems.
Frequently asked questions
Are these 3-Digit Addition worksheets printable?
Yes, many of our 3-Digit Addition worksheets are printable and ready to use in your classroom. You can download PDFs for worksheets, color-by-number activities, and word problem sets. Some resources are free, while others require a paid membership.
Are these 3-Digit Addition worksheets for kids of all ability levels?
Absolutely. Our collection includes materials for students just starting with 3-digit addition (no regrouping) as well as those ready for regrouping. You can find scaffolded worksheets, visual supports, and enrichment activities to meet each child where they are.
Do you have digital or interactive 3-Digit Addition activities?
Yes, we offer digital games and interactive activities that students can complete on a device. These are great for centers, independent practice, or remote learning. Some are free, and full access is available with a membership.
How can I use these resources for assessment?
Our worksheets and word problems can be used as formative or summative assessments. Choose a set of problems that matches your current unit, and use the answer keys to check understanding. The digital activities also provide immediate feedback for students.