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

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

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.

Get more practice performing three-digit addition using open number lines with this second-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.

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.

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

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

Practice multi-digit addition with this hundred chart worksheet for second graders! 

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

Test your talent in two-digit addition with this colorful math worksheet!

This worksheet teaches you to use base 10 drawings to add two-digit numbers.

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

Master two-digit addition with these hundred chart problems!

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!

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

This coloring page dot-to-dot uses skip counting as an unexpected way to tie in multiplication learning and reviewing multiples of three!

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

Your second grader will finally want to practice at-home addition when it involves super heroes and extraordinary powers!

Featuring word problems all about shopping and money, this worksheet is a great way to practice 3-digit addition.

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.

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

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.

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