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

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.

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

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

Use this worksheet to practice two strategies for solving three-digit addition problems. Students will flex their math muscles as they use both the expanded notation and standard algorithm strategies to solve challenging math problems.

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

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

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

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

This simple worksheet is packed with two-digit and three-digit subtraction problems.

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

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

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.

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.

Practice two-and three-digit subtraction in this set of school-themed word problems!

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.

In this worksheet that contains a storyline about a bakery, students will solve two-step, three-digit addition 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!

With this worksheet students will practice using the number line strategy to add three-digit numbers.

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

Add multi-digit numbers with ease in this colorful second-grade math worksheet!

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

Word problems make for great assessment tools because they require a complete understanding of the math concepts. Use this assessment to evaluate your students' abilities to add and subtract three-digit numbers using mixed operation word problems.

What do cows like to listen to? To find the answer to this riddle, your kids will need to sharpen their skills in basic addition. So saddle up and let those addition skills go wild!

Adding up big numbers can be tricky. Teach your budding mathematician a helpful trick to keep the numbers in line with carrying!