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.

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

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

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