1st grade fact families worksheets

Tap to see another sample sheet. The picture follows the difficulty you pick.

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.

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.

  1. 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 1st grade sheet

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

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 1st grade 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?

Related worksheets

Ready to print one?

Need a fresh set of problems? Print another copy. The difficulty you picked above stays.

Aligned to Common Core 1.OA.B.3, 1.OA.B.4. Reviewed by the One more sheet team. Content version 240, updated October 2026.

Spot a mistake on this sheet? Tell us. · About these worksheets