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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: 64 + ____ = 89

    64 · 89 · Number bonds

  2. 2. Find the missing number: 90 + ____ = 96

    90 · 96 · Number bonds

  3. 3. Find the missing number: 56 + ____ = 63

    56 · 63 · Number bonds

  4. 4. Find the missing number: 14 + ____ = 43

    14 · 43 · Number bonds

  5. 5. Find the missing number: 43 + ____ = 87

    43 · 87 · Number bonds

  6. 6. Find the missing number: 28 + ____ = 44

    28 · 44 · Number bonds

  7. 7. Find the missing number: 35 + ____ = 38

    35 · 38 · Number bonds

  8. 8. Find the missing number: 6 + ____ = 25

    6 · 25 · Number bonds

  9. 9. Find the missing number: 5 + ____ = 95

    5 · 95 · Number bonds

  10. 10. Find the missing number: 56 + ____ = 93

    56 · 93 · Number bonds

  11. 11. Find the missing number: 59 + ____ = 75

    59 · 75 · Number bonds

  12. 12. Find the missing number: 42 + ____ = 58

    42 · 58 · Number bonds
12 questions · Seed 55 · 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: 64 + ____ = 89

    25

    Subtract 64 from 89: 89 − 64 = 25. Check: 64 + 25 = 89.

  2. 2. Find the missing number: 90 + ____ = 96

    6

    Subtract 90 from 96: 96 − 90 = 6. Check: 90 + 6 = 96.

  3. 3. Find the missing number: 56 + ____ = 63

    7

    Subtract 56 from 63: 63 − 56 = 7. Check: 56 + 7 = 63.

  4. 4. Find the missing number: 14 + ____ = 43

    29

    Subtract 14 from 43: 43 − 14 = 29. Check: 14 + 29 = 43.

  5. 5. Find the missing number: 43 + ____ = 87

    44

    Subtract 43 from 87: 87 − 43 = 44. Check: 43 + 44 = 87.

  6. 6. Find the missing number: 28 + ____ = 44

    16

    Subtract 28 from 44: 44 − 28 = 16. Check: 28 + 16 = 44.

  7. 7. Find the missing number: 35 + ____ = 38

    3

    Subtract 35 from 38: 38 − 35 = 3. Check: 35 + 3 = 38.

  8. 8. Find the missing number: 6 + ____ = 25

    19

    Subtract 6 from 25: 25 − 6 = 19. Check: 6 + 19 = 25.

  9. 9. Find the missing number: 5 + ____ = 95

    90

    Subtract 5 from 95: 95 − 5 = 90. Check: 5 + 90 = 95.

  10. 10. Find the missing number: 56 + ____ = 93

    37

    Subtract 56 from 93: 93 − 56 = 37. Check: 56 + 37 = 93.

  11. 11. Find the missing number: 59 + ____ = 75

    16

    Subtract 59 from 75: 75 − 59 = 16. Check: 59 + 16 = 75.

  12. 12. Find the missing number: 42 + ____ = 58

    16

    Subtract 42 from 58: 58 − 42 = 16. Check: 42 + 16 = 58.

12 questions · Seed 55 · 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: 64 + ____ = 89

    64 · 89 · Number bonds

  2. 2. Find the missing number: 90 + ____ = 96

    90 · 96 · Number bonds

  3. 3. Find the missing number: 56 + ____ = 63

    56 · 63 · Number bonds

  4. 4. Find the missing number: 14 + ____ = 43

    14 · 43 · Number bonds

  5. 5. Find the missing number: 43 + ____ = 87

    43 · 87 · Number bonds

  6. 6. Find the missing number: 28 + ____ = 44

    28 · 44 · Number bonds

  7. 7. Find the missing number: 35 + ____ = 38

    35 · 38 · Number bonds

  8. 8. Find the missing number: 6 + ____ = 25

    6 · 25 · Number bonds

  9. 9. Find the missing number: 5 + ____ = 95

    5 · 95 · Number bonds

  10. 10. Find the missing number: 56 + ____ = 93

    56 · 93 · Number bonds

  11. 11. Find the missing number: 59 + ____ = 75

    59 · 75 · Number bonds

  12. 12. Find the missing number: 42 + ____ = 58

    42 · 58 · Number bonds
12 questions · Seed 55 · 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: 64 + ____ = 89

    25

    Subtract 64 from 89: 89 − 64 = 25. Check: 64 + 25 = 89.

  2. 2. Find the missing number: 90 + ____ = 96

    6

    Subtract 90 from 96: 96 − 90 = 6. Check: 90 + 6 = 96.

  3. 3. Find the missing number: 56 + ____ = 63

    7

    Subtract 56 from 63: 63 − 56 = 7. Check: 56 + 7 = 63.

  4. 4. Find the missing number: 14 + ____ = 43

    29

    Subtract 14 from 43: 43 − 14 = 29. Check: 14 + 29 = 43.

  5. 5. Find the missing number: 43 + ____ = 87

    44

    Subtract 43 from 87: 87 − 43 = 44. Check: 43 + 44 = 87.

  6. 6. Find the missing number: 28 + ____ = 44

    16

    Subtract 28 from 44: 44 − 28 = 16. Check: 28 + 16 = 44.

  7. 7. Find the missing number: 35 + ____ = 38

    3

    Subtract 35 from 38: 38 − 35 = 3. Check: 35 + 3 = 38.

  8. 8. Find the missing number: 6 + ____ = 25

    19

    Subtract 6 from 25: 25 − 6 = 19. Check: 6 + 19 = 25.

  9. 9. Find the missing number: 5 + ____ = 95

    90

    Subtract 5 from 95: 95 − 5 = 90. Check: 5 + 90 = 95.

  10. 10. Find the missing number: 56 + ____ = 93

    37

    Subtract 56 from 93: 93 − 56 = 37. Check: 56 + 37 = 93.

  11. 11. Find the missing number: 59 + ____ = 75

    16

    Subtract 59 from 75: 75 − 59 = 16. Check: 59 + 16 = 75.

  12. 12. Find the missing number: 42 + ____ = 58

    16

    Subtract 42 from 58: 58 − 42 = 16. Check: 42 + 16 = 58.

12 questions · Seed 55 · Age guidance, not curriculum certification