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2nd - 4th Grade Three-Digit Numbers Multi-Digit Addition Worksheets

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

Add Three-Digit Numbers

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

3-Digit Addition

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

Three-Digit Addition

Practice three-digit addition with regrouping in this set of 36 problems.

Extra Practice: Three-Digit Addition with Regrouping

Bolster your third grader&#39;s addition skills with at-home practice in three-digit addition.

Addition Practice: Triple Digits

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

Word Problems Check-Up

Kids solve addition problems with three-digit addends using regrouping on this third grade math worksheet.

Coral Reef: Three-Digit Addition with Regrouping

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

Searching for a worksheet that practices addition regrouping? This printable is perfect for practicing addition skills like carrying the tens column.

Addition Regrouping

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

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

Practice Word Problem Subtraction

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

Practice adding with this third grade addition worksheet. Your child will hone his addition skills.

Multiple Choice Math: Addition

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

Subtraction Practice

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

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

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

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

Using Base 10 Drawings in Two-Digit Addition

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

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

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

The partial sums method uses place value to help organize multi-digit math problems. Help your child master this strategy with a few practice problems.

Partial Sums

Use this exercise to give your students practice solving word problems with addition, subtraction, or a mix of both operations.

Stepping Through Addition and Subtraction 

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

Get more practice exploring properties of operations while writing addition equations in this second-grade math worksheet!

Open Number Line Addition Within 1,000: Write the Equation #2

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

Addition with Carrying #10

In this worksheets, learn how to add the tens first when using a hundreds chart.

Add the 10s First! (Part One)

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