3 Digit Addition Worksheets

This is a collection of 3-digit addition worksheets. It's great for homework, math centers, and sub-plans, and general practice. 

Take note that this is a subset of our addition worksheets.

What You'll Get

You will receive several printable files. These are 2-page files with worksheets and answer keys. They are organized into folders for easy access. Just pick a worksheet, print and you're ready to go. 

There are eight types in all, each with 15 worksheets.

1. Find the Sum (3 Digit + 3 Digit)

Add the numbers. The addends are aligned vertically so that students would perform addition directly on the worksheet.

2. Add the Numbers (3 Digit + 3 Digit)

Add the numbers and write their sum on the box provided. Students may need to use a separate (scratch) paper to perform addition.

3. Add the Numbers, Show solution (3 Digit + 3 Digit)

Students are required to rewrite and align the addends and then perform addition.

4. Color the correct answer (2 choices) - 3 Digit + 2 Digit

Add the numbers, and then color the box of the correct answer.

5. Color the correct answer (3 choices) - 3 Digit + 2 Digit

Add the numbers. Color the box of the correct answer (from three choices)

6. Choose the Correct Answer from a List (3 Digit + 2 Digit)

Add the numbers and choose the sum from the box. Write the letter of the correct answer in the space provided.

7. Match two Columns – Addends and Sum (3 Digit + 2 Digit)

Match the addends on the left column to the sum on the right column. Write the letter of your answer in the space provided.

8. Add 3 numbers, 2 sums (3 Digit + 2 Digit)

Students would need to add the first two numbers, and then add the result to the third number.