How do fact families help with subtraction facts?

Subtraction is harder to memorize than addition. Families let your child answer 13 − 6 by recalling 6 + 7 = 13 instead.

Are the numbers the same on every print?

No. Each print generates new families, so practice stays fresh for retries and siblings.

2nd grade fact families

2nd grade fact families worksheets

Second graders use fact families to lock in addition and subtraction facts within 20. Writing all four related equations from three roof numbers builds recall. If your child knows 7 + 6 = 13, the family hands them 13 − 6 for free.

Free printable PDF worksheet, aligned to Common Core 2.OA.B.2.

Each print is a different sheet with its own answer key. You don't need to sign up.

The kind of problems you'll get

Write each complete equation. Use the calculation shown beside each line.

3 plus 4 is 7. Write a related subtraction fact.
Answer: 7 minus 4 is 3.

Most problems on this sheet sit beside a picture, model or diagram, so this is the worked example the sheet itself prints. The answer key on page two prints the answer under every problem.

Every print pulls a fresh set of problems at this level, so a make-up test or a second sibling never gets the same sheet.

What's on a 2nd grade sheet

The sample sheet above has 6 problems. This sheet is aligned to 2.OA.B.2. The 1st grade sheet is aligned to 1.OA.B.3, 1.OA.B.4.

Fact families. Write each complete equation. Use the calculation shown beside each line. 6 problems per page.

Every version prints on US Letter or A4, with its answer key after the problems.

How to teach this

Have your child say the whole family before writing it. When a subtraction fact stalls, point at its addition partner. Knowing 6 + 7 = 13 should unlock 13 − 7. Families are the fastest rescue for the subtraction facts kids find hardest.

Watch for: Kids put the biggest number in the wrong spot. It always leads the subtraction or division facts. Kids swap numbers in subtraction or division the way addition allows. 8 − 3 works but 3 − 8 does not, and 24 ÷ 6 is not 6 ÷ 24.

Common questions about 2nd grade fact families

How do fact families help with subtraction facts?: Subtraction is harder to memorize than addition. Families let your child answer 13 − 6 by recalling 6 + 7 = 13 instead.
Are the numbers the same on every print?: No. Each print generates new families, so practice stays fresh for retries and siblings.

Related worksheets

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Aligned to Common Core 2.OA.B.2. Reviewed by the One more sheet team. Content version 241, updated October 2026.

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