Small practice. Bright discoveries.Explore the free starter collection
worksheetstudio.
Sign in
Back to worksheets
MathsAges 7-9

Number bonds

Find the missing addend that completes a target whole number. Review suitability for your learners before teaching.

New variationTry interactive challengeBrowse templates
Age band:Ages 4-6Ages 7-9

Choose “Save as PDF” to keep a copy. Use your browser’s paper setting for A4 or Letter.

Worksheet StudioPractice pack · Ages 7-9

Number bonds

Take your time. Show your thinking.

  1. 1. Find the missing number: 13 + ____ = 24

    13 · 24 · Number bonds

  2. 2. Find the missing number: 16 + ____ = 28

    16 · 28 · Number bonds

  3. 3. Find the missing number: 9 + ____ = 92

    9 · 92 · Number bonds

  4. 4. Find the missing number: 10 + ____ = 28

    10 · 28 · Number bonds

  5. 5. Find the missing number: 49 + ____ = 59

    49 · 59 · Number bonds

  6. 6. Find the missing number: 22 + ____ = 82

    22 · 82 · Number bonds

  7. 7. Find the missing number: 9 + ____ = 40

    9 · 40 · Number bonds

  8. 8. Find the missing number: 84 + ____ = 87

    84 · 87 · Number bonds

  9. 9. Find the missing number: 17 + ____ = 88

    17 · 88 · Number bonds

  10. 10. Find the missing number: 26 + ____ = 28

    26 · 28 · Number bonds

  11. 11. Find the missing number: 8 + ____ = 83

    8 · 83 · Number bonds

  12. 12. Find the missing number: 40 + ____ = 41

    40 · 41 · Number bonds
12 questions · Seed 57 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 7-9

Number bonds

Answers and reasoning. Review before teaching.

  1. 1. Find the missing number: 13 + ____ = 24

    11

    Subtract 13 from 24: 24 − 13 = 11. Check: 13 + 11 = 24.

  2. 2. Find the missing number: 16 + ____ = 28

    12

    Subtract 16 from 28: 28 − 16 = 12. Check: 16 + 12 = 28.

  3. 3. Find the missing number: 9 + ____ = 92

    83

    Subtract 9 from 92: 92 − 9 = 83. Check: 9 + 83 = 92.

  4. 4. Find the missing number: 10 + ____ = 28

    18

    Subtract 10 from 28: 28 − 10 = 18. Check: 10 + 18 = 28.

  5. 5. Find the missing number: 49 + ____ = 59

    10

    Subtract 49 from 59: 59 − 49 = 10. Check: 49 + 10 = 59.

  6. 6. Find the missing number: 22 + ____ = 82

    60

    Subtract 22 from 82: 82 − 22 = 60. Check: 22 + 60 = 82.

  7. 7. Find the missing number: 9 + ____ = 40

    31

    Subtract 9 from 40: 40 − 9 = 31. Check: 9 + 31 = 40.

  8. 8. Find the missing number: 84 + ____ = 87

    3

    Subtract 84 from 87: 87 − 84 = 3. Check: 84 + 3 = 87.

  9. 9. Find the missing number: 17 + ____ = 88

    71

    Subtract 17 from 88: 88 − 17 = 71. Check: 17 + 71 = 88.

  10. 10. Find the missing number: 26 + ____ = 28

    2

    Subtract 26 from 28: 28 − 26 = 2. Check: 26 + 2 = 28.

  11. 11. Find the missing number: 8 + ____ = 83

    75

    Subtract 8 from 83: 83 − 8 = 75. Check: 8 + 75 = 83.

  12. 12. Find the missing number: 40 + ____ = 41

    1

    Subtract 40 from 41: 41 − 40 = 1. Check: 40 + 1 = 41.

12 questions · Seed 57 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 7-9

Number bonds

Take your time. Show your thinking.

  1. 1. Find the missing number: 13 + ____ = 24

    13 · 24 · Number bonds

  2. 2. Find the missing number: 16 + ____ = 28

    16 · 28 · Number bonds

  3. 3. Find the missing number: 9 + ____ = 92

    9 · 92 · Number bonds

  4. 4. Find the missing number: 10 + ____ = 28

    10 · 28 · Number bonds

  5. 5. Find the missing number: 49 + ____ = 59

    49 · 59 · Number bonds

  6. 6. Find the missing number: 22 + ____ = 82

    22 · 82 · Number bonds

  7. 7. Find the missing number: 9 + ____ = 40

    9 · 40 · Number bonds

  8. 8. Find the missing number: 84 + ____ = 87

    84 · 87 · Number bonds

  9. 9. Find the missing number: 17 + ____ = 88

    17 · 88 · Number bonds

  10. 10. Find the missing number: 26 + ____ = 28

    26 · 28 · Number bonds

  11. 11. Find the missing number: 8 + ____ = 83

    8 · 83 · Number bonds

  12. 12. Find the missing number: 40 + ____ = 41

    40 · 41 · Number bonds
12 questions · Seed 57 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 7-9

Number bonds

Answers and reasoning. Review before teaching.

  1. 1. Find the missing number: 13 + ____ = 24

    11

    Subtract 13 from 24: 24 − 13 = 11. Check: 13 + 11 = 24.

  2. 2. Find the missing number: 16 + ____ = 28

    12

    Subtract 16 from 28: 28 − 16 = 12. Check: 16 + 12 = 28.

  3. 3. Find the missing number: 9 + ____ = 92

    83

    Subtract 9 from 92: 92 − 9 = 83. Check: 9 + 83 = 92.

  4. 4. Find the missing number: 10 + ____ = 28

    18

    Subtract 10 from 28: 28 − 10 = 18. Check: 10 + 18 = 28.

  5. 5. Find the missing number: 49 + ____ = 59

    10

    Subtract 49 from 59: 59 − 49 = 10. Check: 49 + 10 = 59.

  6. 6. Find the missing number: 22 + ____ = 82

    60

    Subtract 22 from 82: 82 − 22 = 60. Check: 22 + 60 = 82.

  7. 7. Find the missing number: 9 + ____ = 40

    31

    Subtract 9 from 40: 40 − 9 = 31. Check: 9 + 31 = 40.

  8. 8. Find the missing number: 84 + ____ = 87

    3

    Subtract 84 from 87: 87 − 84 = 3. Check: 84 + 3 = 87.

  9. 9. Find the missing number: 17 + ____ = 88

    71

    Subtract 17 from 88: 88 − 17 = 71. Check: 17 + 71 = 88.

  10. 10. Find the missing number: 26 + ____ = 28

    2

    Subtract 26 from 28: 28 − 26 = 2. Check: 26 + 2 = 28.

  11. 11. Find the missing number: 8 + ____ = 83

    75

    Subtract 8 from 83: 83 − 8 = 75. Check: 8 + 75 = 83.

  12. 12. Find the missing number: 40 + ____ = 41

    1

    Subtract 40 from 41: 41 − 40 = 1. Check: 40 + 1 = 41.

12 questions · Seed 57 · Age guidance, not curriculum certification