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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: 6 + ____ = 36

    6 · 36 · Number bonds

  2. 2. Find the missing number: 19 + ____ = 31

    19 · 31 · Number bonds

  3. 3. Find the missing number: 55 + ____ = 78

    55 · 78 · Number bonds

  4. 4. Find the missing number: 11 + ____ = 43

    11 · 43 · Number bonds

  5. 5. Find the missing number: 5 + ____ = 22

    5 · 22 · Number bonds

  6. 6. Find the missing number: 70 + ____ = 86

    70 · 86 · Number bonds

  7. 7. Find the missing number: 12 + ____ = 21

    12 · 21 · Number bonds

  8. 8. Find the missing number: 8 + ____ = 26

    8 · 26 · Number bonds

  9. 9. Find the missing number: 40 + ____ = 42

    40 · 42 · Number bonds

  10. 10. Find the missing number: 88 + ____ = 98

    88 · 98 · Number bonds

  11. 11. Find the missing number: 63 + ____ = 79

    63 · 79 · Number bonds

  12. 12. Find the missing number: 34 + ____ = 50

    34 · 50 · Number bonds
12 questions · Seed 104734 · 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: 6 + ____ = 36

    30

    Subtract 6 from 36: 36 − 6 = 30. Check: 6 + 30 = 36.

  2. 2. Find the missing number: 19 + ____ = 31

    12

    Subtract 19 from 31: 31 − 19 = 12. Check: 19 + 12 = 31.

  3. 3. Find the missing number: 55 + ____ = 78

    23

    Subtract 55 from 78: 78 − 55 = 23. Check: 55 + 23 = 78.

  4. 4. Find the missing number: 11 + ____ = 43

    32

    Subtract 11 from 43: 43 − 11 = 32. Check: 11 + 32 = 43.

  5. 5. Find the missing number: 5 + ____ = 22

    17

    Subtract 5 from 22: 22 − 5 = 17. Check: 5 + 17 = 22.

  6. 6. Find the missing number: 70 + ____ = 86

    16

    Subtract 70 from 86: 86 − 70 = 16. Check: 70 + 16 = 86.

  7. 7. Find the missing number: 12 + ____ = 21

    9

    Subtract 12 from 21: 21 − 12 = 9. Check: 12 + 9 = 21.

  8. 8. Find the missing number: 8 + ____ = 26

    18

    Subtract 8 from 26: 26 − 8 = 18. Check: 8 + 18 = 26.

  9. 9. Find the missing number: 40 + ____ = 42

    2

    Subtract 40 from 42: 42 − 40 = 2. Check: 40 + 2 = 42.

  10. 10. Find the missing number: 88 + ____ = 98

    10

    Subtract 88 from 98: 98 − 88 = 10. Check: 88 + 10 = 98.

  11. 11. Find the missing number: 63 + ____ = 79

    16

    Subtract 63 from 79: 79 − 63 = 16. Check: 63 + 16 = 79.

  12. 12. Find the missing number: 34 + ____ = 50

    16

    Subtract 34 from 50: 50 − 34 = 16. Check: 34 + 16 = 50.

12 questions · Seed 104734 · 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: 6 + ____ = 36

    6 · 36 · Number bonds

  2. 2. Find the missing number: 19 + ____ = 31

    19 · 31 · Number bonds

  3. 3. Find the missing number: 55 + ____ = 78

    55 · 78 · Number bonds

  4. 4. Find the missing number: 11 + ____ = 43

    11 · 43 · Number bonds

  5. 5. Find the missing number: 5 + ____ = 22

    5 · 22 · Number bonds

  6. 6. Find the missing number: 70 + ____ = 86

    70 · 86 · Number bonds

  7. 7. Find the missing number: 12 + ____ = 21

    12 · 21 · Number bonds

  8. 8. Find the missing number: 8 + ____ = 26

    8 · 26 · Number bonds

  9. 9. Find the missing number: 40 + ____ = 42

    40 · 42 · Number bonds

  10. 10. Find the missing number: 88 + ____ = 98

    88 · 98 · Number bonds

  11. 11. Find the missing number: 63 + ____ = 79

    63 · 79 · Number bonds

  12. 12. Find the missing number: 34 + ____ = 50

    34 · 50 · Number bonds
12 questions · Seed 104734 · 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: 6 + ____ = 36

    30

    Subtract 6 from 36: 36 − 6 = 30. Check: 6 + 30 = 36.

  2. 2. Find the missing number: 19 + ____ = 31

    12

    Subtract 19 from 31: 31 − 19 = 12. Check: 19 + 12 = 31.

  3. 3. Find the missing number: 55 + ____ = 78

    23

    Subtract 55 from 78: 78 − 55 = 23. Check: 55 + 23 = 78.

  4. 4. Find the missing number: 11 + ____ = 43

    32

    Subtract 11 from 43: 43 − 11 = 32. Check: 11 + 32 = 43.

  5. 5. Find the missing number: 5 + ____ = 22

    17

    Subtract 5 from 22: 22 − 5 = 17. Check: 5 + 17 = 22.

  6. 6. Find the missing number: 70 + ____ = 86

    16

    Subtract 70 from 86: 86 − 70 = 16. Check: 70 + 16 = 86.

  7. 7. Find the missing number: 12 + ____ = 21

    9

    Subtract 12 from 21: 21 − 12 = 9. Check: 12 + 9 = 21.

  8. 8. Find the missing number: 8 + ____ = 26

    18

    Subtract 8 from 26: 26 − 8 = 18. Check: 8 + 18 = 26.

  9. 9. Find the missing number: 40 + ____ = 42

    2

    Subtract 40 from 42: 42 − 40 = 2. Check: 40 + 2 = 42.

  10. 10. Find the missing number: 88 + ____ = 98

    10

    Subtract 88 from 98: 98 − 88 = 10. Check: 88 + 10 = 98.

  11. 11. Find the missing number: 63 + ____ = 79

    16

    Subtract 63 from 79: 79 − 63 = 16. Check: 63 + 16 = 79.

  12. 12. Find the missing number: 34 + ____ = 50

    16

    Subtract 34 from 50: 50 − 34 = 16. Check: 34 + 16 = 50.

12 questions · Seed 104734 · Age guidance, not curriculum certification