Get even more practice performing three-digit addition using open number lines with this second-grade math worksheet!

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

Practice three-digit addition using open number lines with this second-grade math worksheet!

Get more practice performing three-digit addition using open number lines with this second-grade math worksheet!

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

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

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

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

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

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

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

Add like mad with our thrilling addition worksheet! This three-minute math drill gets your child racing to complete all the addition equations on the page.

Use this glossary with the EL Support Lesson Plan: Comparing Strategies for Three-Digit Addition.

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

Use these vocabulary cards with the EL Support Lesson Plan: Comparing Strategies for Three-Digit Addition.

Use place value to add three-digit numbers with this second-grade worksheet!

Challenge yourself to solve three-digit addition problems in this colorful worksheet!

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.

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.

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.

Use your knowledge of place value to solve addition problems with this first- and second-grade worksheet!

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.

Get even more practice adding tens on an open number line with this first-grade math worksheet!

Once she's added up the numbers in this 2nd grade math worksheet, your child will use her answers to uncover a hidden word.

Master two-digit addition in this second-grade worksheet!

Master addition using a place value chart with this engaging second-grade worksheet!

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

The butterflies embellishing this adorable worksheet will keep your second grader entertained as they learn how to manage these complex addition problems!

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