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 to move from bubble to bubble on 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!

If your second grader is struggling with carrying, this adorable worksheet will provide some valuable double-digit addition practice.

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.

Your second grader will slide through these two digit addition problems with Sally the Snail!

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.

After completing some difficult double-digit addition, your second grader will be delighted to move onto some creative coloring!

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.

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

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

Your second grader won't mind practicing double-digit addition when these alien accomplices give them a helping hand.

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.

Children learn how to compare numbers using the greater than and less than symbols in this cheerful 2nd grade addition worksheet.

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