1st grade fact families worksheets

Fact families show 1st graders that addition and subtraction are connected: each house holds three numbers, and your child writes the two addition and two subtraction facts they make.

Free printable PDF worksheet, aligned to Common Core 1.OA.B.3, 1.OA.B.4.

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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: 7 + 9 = 16; 9 + 7 = 16; 16 − 7 = 9; 16 − 9 = 7

  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

Read the roof numbers aloud and ask which one is biggest. That number leads both subtraction facts. Build the family with counters first: join three and five, then take one part back away. Write the four facts in the same order every time so the pattern sticks.

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

What is a fact family house?
It's a roof holding three related numbers with room below for the four facts they make. The picture helps kids see that the numbers belong together.
My child only writes two facts per house. Is that wrong?
They're missing the turnaround pairs. Ask: if 3 + 5 = 8 is true, what else has to be true?

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Aligned to Common Core 1.OA.B.3, 1.OA.B.4. Reviewed by the One more sheet curriculum team. Content version 123, updated July 2026.