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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.

Three Part Cube Trains

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

Adding Three

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

Three Pigs Addition: Adding Three Numbers

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

Add Three Numbers

Learners will solve 20 two- and three-digit addition problems in this versatile practice worksheet.

3-Digit Addition

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

Add Three-Digit Numbers

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

Adding Three Numbers

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

Add All Three

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

Three-Digit Addition

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?

Add All Three: Adding Three Numbers

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

Count and Add #3

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

Adding Three-Digit Numbers on an Open Number Line #3

Improve those skills! Practice three-digit addition with these twelve problems.

Add It Up! Three-Digit Numbers

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

Skip Count by Three

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

Three Addend Word Problems

Practice three-digit addition with regrouping in this set of 36 problems.

Extra Practice: Three-Digit Addition with Regrouping

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

Math Notes: Three-Digit Addition

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

Add Three Numbers Word Problems

Use these cards to help students see the difference between adding three-digit numbers using the standard algorithm and expanded notation.

Three-Digit Addition Cards

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!

Three Blind Mice Addition

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

Glossary: 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.

Strategy Cards: Three-Digit Addition

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

Coral Reef: Three-Digit Addition with Regrouping

Let&#39;s see those addition skills! Use this math assessment to check in on your students&rsquo; abilities to add three numbers by having them solve these problems.

Assessment: Adding Three Numbers

Add like mad with our thrilling addition worksheet! This three-minute math drill gets your child racing to complete all the addition equations on the page.

3-Minute Math Drill: Addition

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

Vocabulary Cards: Comparing Strategies for Three-Digit Addition

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

Place Value Chart Addition Without Regrouping: Sums to 1,000 #3

Practice three-digit addition using open number lines with this second-grade math worksheet!

Adding Three-Digit Numbers on an Open Number Line #1

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.

Spring Three-Digit Addition Check-in

Use this worksheet to continue practice with two addition strategies: expanded notation and standard algorithm. Students will be challenged to solve three-digit addition problems and then check their work using multiple methods.

Three-Digit Addition: Part 2

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