← Back

Opens your browser’s print dialog — choose “Save as PDF” as the destination.

Celeste International School

Grade 1 · Worksheet

Working with numbers

Addition & subtraction

Name: ______________________________Date: ______________Score: ______ / 20
  1. 1.

    6 + 4 = ? (a number bond that makes 10)

  2. 2.

    7 + 3 = ?

  3. 3.

    Which pair of numbers makes 10?

    1. A5 + 4
    2. B5 + 5
    3. C6 + 3
  4. 4.

    41 + 6 = ?

  5. 5.

    62 + 7 = ?

  6. 6.

    42 + 10 = ?

  7. 7.

    57 + 10 = ?

  8. 8.

    48 + 20 = ?

  9. 9.

    26 + 30 = ?

  10. 10.

    4 + 5 + 6 = ?

  11. 11.

    9 + 6 + 1 = ?

  12. 12.

    To add 4 + 5 + 6 easily, which two numbers should you add first to make 10?

    1. A4 and 6
    2. B5 and 6
    3. C4 and 5
  13. 13.

    37 - 5 = ?

  14. 14.

    68 - 7 = ?

  15. 15.

    53 - 10 = ?

  16. 16.

    85 - 10 = ?

  17. 17.

    58 - 20 = ?

  18. 18.

    64 - 30 = ?

  19. 19.

    Dad buys a bag of 24 red apples and a bag of 10 green apples. To find how many apples he bought, do you add or subtract?

    1. Aadd
    2. Bsubtract
  20. 20.

    Dad buys 24 red apples and 10 green apples. How many apples did he buy?

Celeste International School

Answer key

Working with numbers — Addition & subtraction

  1. 1.10
  2. 2.10
  3. 3.B. 5 + 5
  4. 4.47
  5. 5.69
  6. 6.52
  7. 7.67
  8. 8.68
  9. 9.56
  10. 10.15
  11. 11.16
  12. 12.A. 4 and 6
  13. 13.32
  14. 14.61
  15. 15.43
  16. 16.75
  17. 17.38
  18. 18.34
  19. 19.A. add
  20. 20.34