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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: 8 + ____ = 58

    8 · 58 · Number bonds

  2. 2. Find the missing number: 29 + ____ = 55

    29 · 55 · Number bonds

  3. 3. Find the missing number: 44 + ____ = 51

    44 · 51 · Number bonds

  4. 4. Find the missing number: 12 + ____ = 20

    12 · 20 · Number bonds

  5. 5. Find the missing number: 42 + ____ = 77

    42 · 77 · Number bonds

  6. 6. Find the missing number: 15 + ____ = 79

    15 · 79 · Number bonds

  7. 7. Find the missing number: 27 + ____ = 47

    27 · 47 · Number bonds

  8. 8. Find the missing number: 56 + ____ = 60

    56 · 60 · Number bonds

  9. 9. Find the missing number: 11 + ____ = 33

    11 · 33 · Number bonds

  10. 10. Find the missing number: 18 + ____ = 81

    18 · 81 · Number bonds

  11. 11. Find the missing number: 18 + ____ = 23

    18 · 23 · Number bonds

  12. 12. Find the missing number: 56 + ____ = 73

    56 · 73 · Number bonds
12 questions · Seed 46 · 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: 8 + ____ = 58

    50

    Subtract 8 from 58: 58 − 8 = 50. Check: 8 + 50 = 58.

  2. 2. Find the missing number: 29 + ____ = 55

    26

    Subtract 29 from 55: 55 − 29 = 26. Check: 29 + 26 = 55.

  3. 3. Find the missing number: 44 + ____ = 51

    7

    Subtract 44 from 51: 51 − 44 = 7. Check: 44 + 7 = 51.

  4. 4. Find the missing number: 12 + ____ = 20

    8

    Subtract 12 from 20: 20 − 12 = 8. Check: 12 + 8 = 20.

  5. 5. Find the missing number: 42 + ____ = 77

    35

    Subtract 42 from 77: 77 − 42 = 35. Check: 42 + 35 = 77.

  6. 6. Find the missing number: 15 + ____ = 79

    64

    Subtract 15 from 79: 79 − 15 = 64. Check: 15 + 64 = 79.

  7. 7. Find the missing number: 27 + ____ = 47

    20

    Subtract 27 from 47: 47 − 27 = 20. Check: 27 + 20 = 47.

  8. 8. Find the missing number: 56 + ____ = 60

    4

    Subtract 56 from 60: 60 − 56 = 4. Check: 56 + 4 = 60.

  9. 9. Find the missing number: 11 + ____ = 33

    22

    Subtract 11 from 33: 33 − 11 = 22. Check: 11 + 22 = 33.

  10. 10. Find the missing number: 18 + ____ = 81

    63

    Subtract 18 from 81: 81 − 18 = 63. Check: 18 + 63 = 81.

  11. 11. Find the missing number: 18 + ____ = 23

    5

    Subtract 18 from 23: 23 − 18 = 5. Check: 18 + 5 = 23.

  12. 12. Find the missing number: 56 + ____ = 73

    17

    Subtract 56 from 73: 73 − 56 = 17. Check: 56 + 17 = 73.

12 questions · Seed 46 · 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: 8 + ____ = 58

    8 · 58 · Number bonds

  2. 2. Find the missing number: 29 + ____ = 55

    29 · 55 · Number bonds

  3. 3. Find the missing number: 44 + ____ = 51

    44 · 51 · Number bonds

  4. 4. Find the missing number: 12 + ____ = 20

    12 · 20 · Number bonds

  5. 5. Find the missing number: 42 + ____ = 77

    42 · 77 · Number bonds

  6. 6. Find the missing number: 15 + ____ = 79

    15 · 79 · Number bonds

  7. 7. Find the missing number: 27 + ____ = 47

    27 · 47 · Number bonds

  8. 8. Find the missing number: 56 + ____ = 60

    56 · 60 · Number bonds

  9. 9. Find the missing number: 11 + ____ = 33

    11 · 33 · Number bonds

  10. 10. Find the missing number: 18 + ____ = 81

    18 · 81 · Number bonds

  11. 11. Find the missing number: 18 + ____ = 23

    18 · 23 · Number bonds

  12. 12. Find the missing number: 56 + ____ = 73

    56 · 73 · Number bonds
12 questions · Seed 46 · 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: 8 + ____ = 58

    50

    Subtract 8 from 58: 58 − 8 = 50. Check: 8 + 50 = 58.

  2. 2. Find the missing number: 29 + ____ = 55

    26

    Subtract 29 from 55: 55 − 29 = 26. Check: 29 + 26 = 55.

  3. 3. Find the missing number: 44 + ____ = 51

    7

    Subtract 44 from 51: 51 − 44 = 7. Check: 44 + 7 = 51.

  4. 4. Find the missing number: 12 + ____ = 20

    8

    Subtract 12 from 20: 20 − 12 = 8. Check: 12 + 8 = 20.

  5. 5. Find the missing number: 42 + ____ = 77

    35

    Subtract 42 from 77: 77 − 42 = 35. Check: 42 + 35 = 77.

  6. 6. Find the missing number: 15 + ____ = 79

    64

    Subtract 15 from 79: 79 − 15 = 64. Check: 15 + 64 = 79.

  7. 7. Find the missing number: 27 + ____ = 47

    20

    Subtract 27 from 47: 47 − 27 = 20. Check: 27 + 20 = 47.

  8. 8. Find the missing number: 56 + ____ = 60

    4

    Subtract 56 from 60: 60 − 56 = 4. Check: 56 + 4 = 60.

  9. 9. Find the missing number: 11 + ____ = 33

    22

    Subtract 11 from 33: 33 − 11 = 22. Check: 11 + 22 = 33.

  10. 10. Find the missing number: 18 + ____ = 81

    63

    Subtract 18 from 81: 81 − 18 = 63. Check: 18 + 63 = 81.

  11. 11. Find the missing number: 18 + ____ = 23

    5

    Subtract 18 from 23: 23 − 18 = 5. Check: 18 + 5 = 23.

  12. 12. Find the missing number: 56 + ____ = 73

    17

    Subtract 56 from 73: 73 − 56 = 17. Check: 56 + 17 = 73.

12 questions · Seed 46 · Age guidance, not curriculum certification