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

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

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.

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

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

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

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

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

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

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

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

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

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

With this worksheet, your second graders will be adding up two-digit and three-digit numbers with ease.

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.

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.

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.