Third graders can practice addition and engage in a coloring activity in one simple worksheet.

Adding large numbers can be tough, but rounding makes it easy. Use rounding to the nearest 100 to make complicated addition problems simple.

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

Practice adding with this third grade addition worksheet. Your child will hone his addition skills.

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

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

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!

Get even 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.

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

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

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

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

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

Searching for a worksheet that practices addition regrouping? This printable is perfect for practicing addition skills like carrying the tens column.

Give your kids extra addition practice with this worksheet, which teaches them that it's best to focus on the tens first.

Explore properties of operations while writing addition equations in this second-grade math worksheet!

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

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

Practice your addition skills with this inviting second-grade worksheet!