1st grade math · Printable practice

Adding Doubles Worksheets

Practice doubles facts from 0 + 0 through 10 + 10 with free printable worksheets and answers. Make a fresh order and select your page size.

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Set 1
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Adding Doubles Worksheets

Add the two equal numbers. Some facts repeat on longer sheets for fluency practice.

Name: ____________________   Date: __________

  1. 1.

    9 + 9 = ___

  2. 2.

    8 + 8 = ___

  3. 3.

    5 + 5 = ___

  4. 4.

    2 + 2 = ___

  5. 5.

    3 + 3 = ___

  6. 6.

    1 + 1 = ___

  7. 7.

    10 + 10 = ___

  8. 8.

    7 + 7 = ___

  9. 9.

    4 + 4 = ___

  10. 10.

    0 + 0 = ___

  11. 11.

    6 + 6 = ___

  12. 12.

    9 + 9 = ___

Print at actual size or 100%. Answer keys start on a new page. Changing the set changes the order and selection; familiar facts may appear again.

Try one together

A worked example

6 + 6 = ___

Answer: 12

Two equal groups of 6 make 12. You can check by counting 6 objects in each group.

How to use these worksheets

Doubles have equal addends. Connect each written fact to two equal groups, then use the facts in quick review. There are eleven doubles facts from 0 + 0 to 10 + 10, so a 12- or 20-question page intentionally repeats facts after covering the set.

Watch for this

Doubling means adding a number to itself, not adding 2. Compare 5 + 5 with 5 + 2 using counters.

Choose the next skill

Use easier facts for a warm-up, or connect this skill to another kind of question.

Mix addition and subtraction in one worksheet →

Printing and practice questions

Are the worksheets and answer keys free?

Yes. Generate and download these individual worksheets without an account. You can use them at home, in your classroom, or with your tutoring students.

Can I make a different worksheet next time?

Choose New questions for another set. Save settings remembers the question count, paper size, and answer-key choice on this device. It does not store learner names or progress.

Will this print on my paper size?

Select A4 or US Letter before downloading. Print the PDF at actual size. You can omit the answer key, or print only the question pages for learners.

What should I do if the questions are too difficult?

Start with six questions and work through the example together. Use the linked prerequisite skills or physical counters before trying another set. These are practice materials, not a diagnostic assessment.

Browse the original numbered worksheet sets

These existing worksheet links remain available.