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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!

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

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.

Keep your second grader entertained--and teach her two-digit addition skills at the same time--with this super hero-themed worksheet.

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.

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

Students solve addition problems with two-digit addends and no regrouping on this fruit-themed 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.

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

As these friendly insects provide some creature companionship, your second grader will learn to add and carry over remainders in multi-digit problems!

For double-digit addition practice, try this second grade math worksheet. Don't forget to carry that one!

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

Two-digit addition got your second grader down? Liven up math practice with this extraordinary worksheet.

Guide your second grader through this fun, two-digit addition worksheet to boost her mental math skills.

Got a second grader who's reluctant to practice math? Addition loses its bore factor with a math worksheet infused with extraordinary energy.

This charming addition worksheet will provide your second grader with some valuable double-digit training while keeping him entertained!

Is your second grader struggling with two-digit addition? This super hero worksheet should motivate him to practice math!

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

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

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

Two-digit addition troubling your second grader? The only way to get the concept down is practice, practice ... and more practice!