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.

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The kind of problems you'll get

Use the three numbers to write the fact family.

  1. Write the fact family.

    Answer: 6 + 6 = 12; 12 − 6 = 6

  2. Write the fact family.
  3. Write the fact family.

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 each sheet

Every version prints on US Letter or A4, with its answer key on the last page.

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 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.

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Aligned to Common Core 2.OA.B.2. Reviewed by the One more sheet curriculum team. Content version 123, updated July 2026.