3-Digit Addition Worksheets

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Are you looking for ways to boost up three-digit addition? Our free, printable 3-digit addition worksheets are the right place. Work your way through the addition sums featuring 3-digit addends. The wide range of exercises, including finding the sum with or without regrouping, circling the numbers, identifying the missing digits, grid addition, line-up addition, and word problems, will help children solve addition problems within 1,000 in a jiffy!

We recommend these printable practice resources for grade 2, grade 3, and grade 4 kids.

Adding 3-Digit Numbers | Without Regrouping

Get 2nd grade kids knuckling down to three-digit addition with the problems in these printable worksheets exclusively designed for budding math geniuses. They'll pick up speed progressing through this no-regrouping addition exercise.

Adding 3-Digit Numbers - Without Regrouping

Adding 3-Digit Numbers | With Regrouping

Help brighten up kids' regrouping prospects as they find the sum of three-digit numbers in this set of printable 3-digit addition worksheets. Practice to your heart's content carrying forward the numbers in this pdf exercise.

Adding 3-Digit Numbers - With Regrouping

Adding 3-Digit Numbers

Get the most out of this must-have pdf resource that features questions for young learners in adding numbers within 1000 with and without regrouping, all in the same place. Get started right away!

Adding 3-Digit Numbers

Adding Tens and Hundreds

Grab our pdf practice resource to help kids in grade 2 lay a firm foundation for 3-digit addition. Instruct students to add the given tens and hundreds, putting place value in perspective, in this simple starter exercise.

Adding Tens and Hundreds

3-Digit Addition Word Problems

These addition word problem worksheets accentuate addition of numbers through scads of practice in the form of interactive word problems. The problem sums are both with and without regrouping.

3-Digit Addition Word Problems

Circling the Numbers

The problems in these 3-digit addition pdf worksheets involve addends with 3-digit whole numbers. The task is for 2nd grade and 3rd grade kids to identify and circle the addends whose sum is given.

Circling the Numbers

Decoding the Riddle

Flushed with success, 3rd grade and 4th grade children start decoding riddles in these 3-digit addition worksheets, while finding the sum of the three digit addends. Mastery in the concept is guaranteed!

Decoding the Riddle

Grid Addition | 3-Digit Numbers

Presenting the addends in a grid, these 3-digit grid addition worksheets shine light on place value, enabling grade 3 kids to find the sum of the three-digit numbers efficiently and accurately.

Grid Addition - 3-Digit Numbers

Line-Up Addition | 3-Digit Numbers

This pack of line-up addition pdfs requires kids to arrange the addends vertically and line up the digits by place value to find the sum. The more they practice, the less they’ll struggle to work out the solutions.

Line-Up Addition - 3-Digit Numbers

Finding the Missing Digits

If you're looking to give your grade 4 students a challenge, then this resource is for you! This pdf set features 3-digit addends with a few missing digits. Help kids identify the pattern and find the missing digits.

Finding the Missing Digits