Three-Digit Numbers Multi-Digit Addition Worksheets

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

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

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

Bolster your third grader's addition skills with at-home practice in three-digit addition.

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

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

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

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

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.

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

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

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

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

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

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

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.

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.

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.

Adding large numbers can be tough, but rounding makes it easy. Use rounding to the nearest 100 to make complicated addition problems simple.

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.

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.

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

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

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.

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

How are your students coming along in their three-digit addition skills? Use this spring math assessment to gauge your students' abilities to add within 1,000.

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

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

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