Children practice writing numbers from expanded forms, and expanded forms from numbers.

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

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

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

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

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

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.

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

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