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Maths · Year 1

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Subtraction within 20

Take away one number from another. Use the - and = signs.

Name:
Date:
Try each question. If you're stuck, leave it and come back. The answer key is on the last page.
  1. 1

    There are 5 cakes. Tom eats 2. How many are left? 5 - 2 = ___ cakes

    Answer:
  2. 2

    Take away. 10 - 3 = ___

    Answer:
  3. 3

    What is 8 - 4? A) 2 B) 3 C) 4 D) 5

    Answer:
  4. 4

    5 apples 🍎. Eat 2. How many left? 5 - 2 = ___

    Answer:
  5. 5

    Lily has 7 biscuits. She gives 3 to her friend. How many are left? 7 - 3 = ___ biscuits

    Answer:
  6. 6

    Take away. 15 - 7 = ___

    Answer:
  7. 7

    What is 12 - 5? A) 6 B) 7 C) 8 D) 9

    Answer:
  8. 8

    Take away. 20 - 5 = ___

    Answer:
  9. 9

    There are 14 frogs on a log. 6 hop away. How many are left? 14 - 6 = ___ frogs

    Answer:
  10. 10

    What is 18 - 9? A) 7 B) 8 C) 9 D) 10

    Answer:

Answer key

Subtraction within 20 · for parents and teachers

  1. 1

    3

    5 - 2 = 3. There are 3 cakes left.

  2. 2

    7

    10 - 3 = 7.

  3. 3

    4

    8 - 4 = 4.

  4. 4

    3

    5 - 2 = 3.

  5. 5

    4

    7 - 3 = 4. Lily has 4 biscuits left.

  6. 6

    8

    15 - 7 = 8.

  7. 7

    7

    12 - 5 = 7.

  8. 8

    15

    20 - 5 = 15.

  9. 9

    8

    14 - 6 = 8. There are 8 frogs left.

  10. 10

    9

    18 - 9 = 9.