Single-Digit Subtraction Worksheets

Kindergarten-1st gradeMathFree PDF + answer key

These single-digit subtraction worksheets help kids practice taking away numbers 0 through 9 until the facts become quick and automatic. Written for kindergarten and 1st grade learners moving beyond counting backward on fingers, each printable PDF includes a ready-made answer key.

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How to teach single-digit subtraction facts within 18

  1. 1

    Count back on a number line

    Have your child start at the larger number and hop backward the number of times shown by the number being subtracted, landing on the answer.

  2. 2

    Use a ten-frame take-away model

    Fill a ten-frame with counters for the starting number, then physically remove counters one at a time while counting down.

  3. 3

    Connect to addition fact families

    Show that if 6+7=13, then 13-7=6 and 13-6=7, so subtraction facts can be recalled from addition facts they already know.

  4. 4

    Practice with a daily quick drill

    Run a short timed page of ten problems each day and chart correct answers to build both speed and confidence.

Common mistakes kids make

  • Subtracting the smaller number from the larger one regardless of position — remind them the top number always comes first in a vertical problem.
  • Counting back one extra or one too few spaces on a number line — have them touch and say each number as they hop.
  • Mixing up subtraction with addition symbols — circle the minus sign in a bright color before starting.
  • Guessing instead of using a strategy on harder facts — go back to ten-frames or counters when a fact isn't automatic yet.

Tips for parents and teachers

  • Keep early practice sets short, around 10-15 problems, to avoid frustration.
  • Review the matching addition fact family alongside each subtraction page for a deeper connection.
  • Read problems aloud for children who aren't yet strong readers so the worksheet tests math skills only.
  • Celebrate correct strategies, not just correct answers, to build lasting number sense.

Grade alignment

This worksheet supports Common Core standard 1.OA.C.6, typically taught in Kindergarten-1st grade. Use it for practice, homework, review or a timed check of fluency.

Frequently asked questions

What grade level is single-digit subtraction for?

It's typically introduced in kindergarten and mastered by the end of 1st grade under Common Core standard 1.OA.C.6.

How does subtraction connect to addition facts?

Every subtraction fact has a related addition fact in the same fact family, so strong addition recall supports subtraction fluency.

My child still counts on fingers for subtraction. Is that okay?

Yes, it's a normal bridge strategy; pairing it with a number line helps counting eventually turn into instant recall.

Are these printable for free?

Yes, every worksheet on this page is a free printable PDF that comes with a separate answer key.

Can I use this for a timed fact test?

Yes, a short 20-problem timed sheet works well for checking subtraction fact fluency.

What comes after single-digit subtraction?

Once facts within 18 are solid, move to 2-digit subtraction without regrouping, then with regrouping, to build toward borrowing.