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MathsAges 7-9

Number bonds

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

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Age band:Ages 4-6Ages 7-9

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Worksheet StudioPractice pack · Ages 7-9

Number bonds

Take your time. Show your thinking.

  1. 1. Find the missing number: 33 + ____ = 63

    33 · 63 · Number bonds

  2. 2. Find the missing number: 15 + ____ = 86

    15 · 86 · Number bonds

  3. 3. Find the missing number: 23 + ____ = 76

    23 · 76 · Number bonds

  4. 4. Find the missing number: 21 + ____ = 24

    21 · 24 · Number bonds

  5. 5. Find the missing number: 47 + ____ = 59

    47 · 59 · Number bonds

  6. 6. Find the missing number: 34 + ____ = 36

    34 · 36 · Number bonds

  7. 7. Find the missing number: 5 + ____ = 64

    5 · 64 · Number bonds

  8. 8. Find the missing number: 13 + ____ = 28

    13 · 28 · Number bonds

  9. 9. Find the missing number: 60 + ____ = 71

    60 · 71 · Number bonds

  10. 10. Find the missing number: 2 + ____ = 82

    2 · 82 · Number bonds

  11. 11. Find the missing number: 8 + ____ = 48

    8 · 48 · Number bonds

  12. 12. Find the missing number: 55 + ____ = 96

    55 · 96 · Number bonds
12 questions · Seed 51 · 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: 33 + ____ = 63

    30

    Subtract 33 from 63: 63 − 33 = 30. Check: 33 + 30 = 63.

  2. 2. Find the missing number: 15 + ____ = 86

    71

    Subtract 15 from 86: 86 − 15 = 71. Check: 15 + 71 = 86.

  3. 3. Find the missing number: 23 + ____ = 76

    53

    Subtract 23 from 76: 76 − 23 = 53. Check: 23 + 53 = 76.

  4. 4. Find the missing number: 21 + ____ = 24

    3

    Subtract 21 from 24: 24 − 21 = 3. Check: 21 + 3 = 24.

  5. 5. Find the missing number: 47 + ____ = 59

    12

    Subtract 47 from 59: 59 − 47 = 12. Check: 47 + 12 = 59.

  6. 6. Find the missing number: 34 + ____ = 36

    2

    Subtract 34 from 36: 36 − 34 = 2. Check: 34 + 2 = 36.

  7. 7. Find the missing number: 5 + ____ = 64

    59

    Subtract 5 from 64: 64 − 5 = 59. Check: 5 + 59 = 64.

  8. 8. Find the missing number: 13 + ____ = 28

    15

    Subtract 13 from 28: 28 − 13 = 15. Check: 13 + 15 = 28.

  9. 9. Find the missing number: 60 + ____ = 71

    11

    Subtract 60 from 71: 71 − 60 = 11. Check: 60 + 11 = 71.

  10. 10. Find the missing number: 2 + ____ = 82

    80

    Subtract 2 from 82: 82 − 2 = 80. Check: 2 + 80 = 82.

  11. 11. Find the missing number: 8 + ____ = 48

    40

    Subtract 8 from 48: 48 − 8 = 40. Check: 8 + 40 = 48.

  12. 12. Find the missing number: 55 + ____ = 96

    41

    Subtract 55 from 96: 96 − 55 = 41. Check: 55 + 41 = 96.

12 questions · Seed 51 · 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: 33 + ____ = 63

    33 · 63 · Number bonds

  2. 2. Find the missing number: 15 + ____ = 86

    15 · 86 · Number bonds

  3. 3. Find the missing number: 23 + ____ = 76

    23 · 76 · Number bonds

  4. 4. Find the missing number: 21 + ____ = 24

    21 · 24 · Number bonds

  5. 5. Find the missing number: 47 + ____ = 59

    47 · 59 · Number bonds

  6. 6. Find the missing number: 34 + ____ = 36

    34 · 36 · Number bonds

  7. 7. Find the missing number: 5 + ____ = 64

    5 · 64 · Number bonds

  8. 8. Find the missing number: 13 + ____ = 28

    13 · 28 · Number bonds

  9. 9. Find the missing number: 60 + ____ = 71

    60 · 71 · Number bonds

  10. 10. Find the missing number: 2 + ____ = 82

    2 · 82 · Number bonds

  11. 11. Find the missing number: 8 + ____ = 48

    8 · 48 · Number bonds

  12. 12. Find the missing number: 55 + ____ = 96

    55 · 96 · Number bonds
12 questions · Seed 51 · 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: 33 + ____ = 63

    30

    Subtract 33 from 63: 63 − 33 = 30. Check: 33 + 30 = 63.

  2. 2. Find the missing number: 15 + ____ = 86

    71

    Subtract 15 from 86: 86 − 15 = 71. Check: 15 + 71 = 86.

  3. 3. Find the missing number: 23 + ____ = 76

    53

    Subtract 23 from 76: 76 − 23 = 53. Check: 23 + 53 = 76.

  4. 4. Find the missing number: 21 + ____ = 24

    3

    Subtract 21 from 24: 24 − 21 = 3. Check: 21 + 3 = 24.

  5. 5. Find the missing number: 47 + ____ = 59

    12

    Subtract 47 from 59: 59 − 47 = 12. Check: 47 + 12 = 59.

  6. 6. Find the missing number: 34 + ____ = 36

    2

    Subtract 34 from 36: 36 − 34 = 2. Check: 34 + 2 = 36.

  7. 7. Find the missing number: 5 + ____ = 64

    59

    Subtract 5 from 64: 64 − 5 = 59. Check: 5 + 59 = 64.

  8. 8. Find the missing number: 13 + ____ = 28

    15

    Subtract 13 from 28: 28 − 13 = 15. Check: 13 + 15 = 28.

  9. 9. Find the missing number: 60 + ____ = 71

    11

    Subtract 60 from 71: 71 − 60 = 11. Check: 60 + 11 = 71.

  10. 10. Find the missing number: 2 + ____ = 82

    80

    Subtract 2 from 82: 82 − 2 = 80. Check: 2 + 80 = 82.

  11. 11. Find the missing number: 8 + ____ = 48

    40

    Subtract 8 from 48: 48 − 8 = 40. Check: 8 + 40 = 48.

  12. 12. Find the missing number: 55 + ____ = 96

    41

    Subtract 55 from 96: 96 − 55 = 41. Check: 55 + 41 = 96.

12 questions · Seed 51 · Age guidance, not curriculum certification