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

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

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.

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!

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!

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

Practice adding 3 to numbers within 10 with this first-grade addition worksheet!

Get more practice adding two-digit numbers on open number lines with this inviting addition worksheet!

Try this bright worksheet to give your first grader some at-home practice with adding three numbers!

If your child is confident in their addition skills, challenge them to tackle addition with three numbers.

Adding two numbers? Too easy. See if your kindergarten math whiz can add three!

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

Jump to the rhythm of the math beat with this 1st grade worksheet that features single-digit addition problems with sums up to 9.

Learning addition is as easy as 1-2-3! Give your child a head start on addition with this counting worksheet.

Kids look for keywords to determine how to solve each problem with this three-step addition worksheet.

Use the worksheet to help students visualize addition number sentences with three addends. Kids build 10 cube trains using three different color cubes, color their trains, and then write out the equations.

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!

If your child is looking for a number challenge, we've got the worksheet for her. She may be a whiz at adding two numbers, but can she add three numbers?

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

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

Did you know there is math in the Olympics? Swim your way to the gold by adding multiple sets of double-digit numbers.