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Common Core Three-Digit Numbers Multi-Digit Addition Worksheets

Learners will solve 20 two- and three-digit addition problems in this versatile practice worksheet.

3-Digit Addition

Give students practice adding three-digit numbers within 1,000!&nbsp;

Add Three-Digit Numbers

Children will put their three-digit addition skills to the test as they solve 23 practice problems in this math worksheet.

Three-Digit Addition

Use this resource to support your students as they analyze word problems involving addition and subtraction. Focus on their process, and then allow them to solve to find the answer.

Word Problems: Addition and Subtraction

Review subtraction and check your work with this worksheet that asks kids to subtract, then add in reverse.

Check Your Work: Subtraction

Take math everywhere you go, even to the beach! Students will use subtraction, addition, and time solving skills to complete the beach-themed word problems.

Beachy Word Problems

Use this resource to assess students’ abilities to solve a variety of word problems.

Word Problems Check-Up

Word problems make for great assessment tools because they require a complete understanding of the math concepts. Use this assessment to evaluate your students' abilities to add and subtract three-digit numbers using mixed operation word problems.

Mixed Operation Word Problem Check-in

Improve those skills! Practice three-digit addition with these twelve problems.

Add It Up! Three-Digit Numbers

This resource gives your learners practice solving multi-step word problems with mixed operations. They will use addition, subtraction, or both operations.

Stepping Through Addition and Subtraction Word Problems Practice

Children practice finding the sum of two three-digit whole numbers, with no regrouping, in this math worksheet.

Math Notes: Three-Digit Addition

Help your students apply strategies when solving addition problems. This worksheet provides practice for using number lines to solve addition problems with three-digit numbers.

Practice Adding Three-Digit Numbers on an Open Number Line

This simple worksheet is packed with two-digit and three-digit subtraction problems.

Subtraction Practice

Use this worksheet to continue practice with two addition strategies: expanded notation and standard algorithm. Students will be challenged to solve three-digit addition problems and then check their work using multiple methods.

Three-Digit Addition: Part 2

Let's see how those addition skills have blossomed over the course of the year! Use this quick math assessment to gauge your students' abilities to add three-digit numbers, both with and without regrouping.

Addition Within 1000 Check-in

This math fluency checklist is a great tool that can be used to encourage students to use different strategies to solve math problems efficiently and accurately.

Math Fluency Checklist

Use this worksheet to practice two strategies for solving three-digit addition problems. Students will flex their math muscles as they use both the expanded notation and standard algorithm strategies to solve challenging math problems.

Three-Digit Addition: Part 1

The best way to solve a complicated problem is to break it down. Help your students use the Read, Write, Draw strategy to solve word problems with this worksheet.

Word Problem Solving Template - Read, Draw, Write

Practice&nbsp;two-and three-digit subtraction in this set of school-themed word problems!

Practice Word Problem Subtraction

This worksheet teaches you to use base 10 drawings to add two-digit numbers.

Using Base 10 Drawings in Two-Digit Addition

The hundreds chart is great for adding tens. Help Stephanie figure out how many beads she bought by moving down the chart.

Adding 10s on the Hundreds Chart

Children practice writing numbers from expanded forms, and expanded forms from numbers.

Place Value: Expanding Numbers #2

Let your child get in some extra addition practice with this worksheet perfect for carrying beginners.

Addition with Carrying #3

Use these strategy cards to help students develop their compare and contrast skills, along with deepening their understanding of three-digit addition.

Strategy Cards: Three-Digit Addition

What does carrying have to do with math? Help your second grader find out with this worksheet full of big number addition and carrying hints.

Carry Over

Is your second grader ready to step up her carrying skills? This intermediate worksheet will test her powers of addition!

Addition with Carrying #6

Addition will probably be the most basic and most constant use of math for any kid or adult. This worksheet will give your child lots of practice with it.

Round & Add

Use this glossary with the EL Support Lesson: Thinking Deeply About Word Problems.

Glossary: Thinking Deeply About Word Problems

Use these cards to help students see the difference between adding three-digit numbers using the standard algorithm and expanded notation.

Three-Digit Addition Cards

Once your child masters addition with carrying, there's practically no number too big for her to add!

Addition with Carrying #10

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Common Core Three-Digit Numbers Multi-Digit Addition Worksheets

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