Grade 1 · Year 2 · Class 1 · ages 6–7
Subtraction within 20 worksheets.
Free printable subtraction within 20 worksheets with answer keys. Subtracting within 20, including crossing back over 10. Choose the level and the number of questions, then download a PDF or print.
- Grade 1
- Year 2 · Class 1
- Ages 6–7
- PDF + print
- Answer key
- Free
Sheet 49192. Change the options above or make a new worksheet.
Subtraction within 20
Grade 1 · Medium · 12 questions · Sheet 49192
Name Date Score / 12
- 1.17 − 9 =
- 2.15 − 10 =
- 3.12 − 8 =
- 4.12 − 10 =
- 5.11 − 5 =
- 6.15 − 6 =
- 7.13 − 11 =
- 8.12 − 5 =
- 9.19 − 6 =
- 10.12 − 11 =
- 11.10 − 8 =
- 12.19 − 5 =
About subtraction within 20 worksheets
Subtracting within 20, including crossing back over 10. This worksheet maker is aimed at Grade 1 (Year 2, Class 1) (ages 6–7) and makes new questions every time, with the answers worked out by a maths engine.
Teaching tip
To work out 15 − 8, count back to 10 first (5) and then take away the other 3.
What the three levels look like
- Easy: 11 − 1 = ___
- Medium: 20 − 11 = ___
- Challenge: 11 − 9 = ___
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FAQ
Subtraction within 20 worksheets: questions
What grade are subtraction within 20 worksheets for?
Subtraction within 20 is usually taught around Grade 1 (Year 2, Class 1), for ages 6–7. Every grade has an easy, medium and challenge level, so you can go back to an earlier level or push ahead.
Do these subtraction within 20 worksheets include an answer key?
Yes. Press Download PDF with the answer key switched on and the last page lists every answer. Turn the key off for a clean student copy.
Can I make a new worksheet with different questions?
Yes. Press New worksheet for a fresh set of questions. Each sheet has a sheet number printed on it; open this page with the same level, question count and number to get exactly the same sheet again.
How do I help a child who finds subtraction within 20 hard?
To work out 15 − 8, count back to 10 first (5) and then take away the other 3. Start with the easy level, and practise a few minutes every day rather than one long session.
How do I explain borrowing in subtraction?
When the top digit is smaller than the bottom digit, take one from the next column to the left and add ten to the digit you are working on. Using base-ten blocks helps children see why this works.
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Subtraction within 20 (Grade 1): Subtracting within 20, including crossing back over 10. Open the practice page or print a worksheet.
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