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

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 two-digit addends using regrouping on this third grade math worksheet.

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.

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

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

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

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.

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!

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

Learn to perform addition with three-digit numbers in this essential worksheet!

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

Kids help Olga the Octopus on this second grade math worksheet by solving subtraction problems with two-digit numbers using regrouping.

This colorful printable--complete with a lovable three-eyed monster--will help your second grader master double-digit addition with carrying!

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

Help your second grader strengthen her two-digit addition skills ... and pretend she's a super hero at the same time!

Practice place value and two-digit addition with this inviting worksheet!

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

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.

Is addition with regrouping giving your child trouble? Addition problems are fun to solve in this monster-filled worksheet that doubles as a coloring page!

Second graders can practice double-digit addition with carrying in this monster-filled math worksheet.

Help your child practice carrying with this second grade math worksheet that includes 12 two-digit addition problems.

Give your child's addition skills a boost with this second grade math worksheet that offers practice in two-digit addition using carrying.

Kids solve addition problems with two-digit addends to move from ice chunk to ice chunk and help Polly get to her cub on this second grade math worksheet.

Help your second grader master double-digit addition and carrying with this fun, bird-bedecked math worksheet.

Boost your child's addition fact fluency with this second grade math worksheet offering two-digit addition problems that require carrying.

With its two-digit addition problems and healthy dose of carrying, this second grade worksheet offers a worthy challenge to aspiring young mathematicians.

Send your second grader on an underwater double-digit addition challenge!