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!

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

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

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?

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

Teach your students to solve word problems with three addends. Plenty of space is provided for students to show their thinking!

Can your first grader practice adding three numbers together to help these working people do their jobs?

What if more blind mice were added to the three blind mice? Help your child practice her counting with this nursery rhyme intro to addition!

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

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

Let's see those addition skills! Use this math assessment to check in on your students’ abilities to add three numbers by having them solve these problems.

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

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

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!

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.

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

Introduce learners to ten frames with this inviting early addition worksheet!

Practice addition within 10 using ten frames with the help of this addition strategies worksheet! 

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

Use your knowledge of place value to solve addition problems with this first- and second-grade worksheet!

Sports stars, liven your math practice with some baseball addition! Your child will get to practice his addition facts (simple one-digit addition problems).