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MathsAges 4-6

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 4-6

Number bonds

Take your time. Show your thinking.

  1. 1. Find the missing number: 10 + ____ = 12

    10 · 12 · Number bonds

  2. 2. Find the missing number: 6 + ____ = 11

    6 · 11 · Number bonds

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

    7 · 9 · Number bonds

  4. 4. Find the missing number: 1 + ____ = 5

    1 · 5 · Number bonds

  5. 5. Find the missing number: 8 + ____ = 10

    8 · 10 · Number bonds

  6. 6. Find the missing number: 7 + ____ = 8

    7 · 8 · Number bonds

  7. 7. Find the missing number: 8 + ____ = 9

    8 · 9 · Number bonds

  8. 8. Find the missing number: 3 + ____ = 10

    3 · 10 · Number bonds

  9. 9. Find the missing number: 2 + ____ = 13

    2 · 13 · Number bonds

  10. 10. Find the missing number: 10 + ____ = 11

    10 · 11 · Number bonds

  11. 11. Find the missing number: 12 + ____ = 13

    12 · 13 · Number bonds

  12. 12. Find the missing number: 5 + ____ = 6

    5 · 6 · Number bonds
12 questions · Seed 43 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 4-6

Number bonds

Answers and reasoning. Review before teaching.

  1. 1. Find the missing number: 10 + ____ = 12

    2

    Subtract 10 from 12: 12 − 10 = 2. Check: 10 + 2 = 12.

  2. 2. Find the missing number: 6 + ____ = 11

    5

    Subtract 6 from 11: 11 − 6 = 5. Check: 6 + 5 = 11.

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

    2

    Subtract 7 from 9: 9 − 7 = 2. Check: 7 + 2 = 9.

  4. 4. Find the missing number: 1 + ____ = 5

    4

    Subtract 1 from 5: 5 − 1 = 4. Check: 1 + 4 = 5.

  5. 5. Find the missing number: 8 + ____ = 10

    2

    Subtract 8 from 10: 10 − 8 = 2. Check: 8 + 2 = 10.

  6. 6. Find the missing number: 7 + ____ = 8

    1

    Subtract 7 from 8: 8 − 7 = 1. Check: 7 + 1 = 8.

  7. 7. Find the missing number: 8 + ____ = 9

    1

    Subtract 8 from 9: 9 − 8 = 1. Check: 8 + 1 = 9.

  8. 8. Find the missing number: 3 + ____ = 10

    7

    Subtract 3 from 10: 10 − 3 = 7. Check: 3 + 7 = 10.

  9. 9. Find the missing number: 2 + ____ = 13

    11

    Subtract 2 from 13: 13 − 2 = 11. Check: 2 + 11 = 13.

  10. 10. Find the missing number: 10 + ____ = 11

    1

    Subtract 10 from 11: 11 − 10 = 1. Check: 10 + 1 = 11.

  11. 11. Find the missing number: 12 + ____ = 13

    1

    Subtract 12 from 13: 13 − 12 = 1. Check: 12 + 1 = 13.

  12. 12. Find the missing number: 5 + ____ = 6

    1

    Subtract 5 from 6: 6 − 5 = 1. Check: 5 + 1 = 6.

12 questions · Seed 43 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 4-6

Number bonds

Take your time. Show your thinking.

  1. 1. Find the missing number: 10 + ____ = 12

    10 · 12 · Number bonds

  2. 2. Find the missing number: 6 + ____ = 11

    6 · 11 · Number bonds

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

    7 · 9 · Number bonds

  4. 4. Find the missing number: 1 + ____ = 5

    1 · 5 · Number bonds

  5. 5. Find the missing number: 8 + ____ = 10

    8 · 10 · Number bonds

  6. 6. Find the missing number: 7 + ____ = 8

    7 · 8 · Number bonds

  7. 7. Find the missing number: 8 + ____ = 9

    8 · 9 · Number bonds

  8. 8. Find the missing number: 3 + ____ = 10

    3 · 10 · Number bonds

  9. 9. Find the missing number: 2 + ____ = 13

    2 · 13 · Number bonds

  10. 10. Find the missing number: 10 + ____ = 11

    10 · 11 · Number bonds

  11. 11. Find the missing number: 12 + ____ = 13

    12 · 13 · Number bonds

  12. 12. Find the missing number: 5 + ____ = 6

    5 · 6 · Number bonds
12 questions · Seed 43 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 4-6

Number bonds

Answers and reasoning. Review before teaching.

  1. 1. Find the missing number: 10 + ____ = 12

    2

    Subtract 10 from 12: 12 − 10 = 2. Check: 10 + 2 = 12.

  2. 2. Find the missing number: 6 + ____ = 11

    5

    Subtract 6 from 11: 11 − 6 = 5. Check: 6 + 5 = 11.

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

    2

    Subtract 7 from 9: 9 − 7 = 2. Check: 7 + 2 = 9.

  4. 4. Find the missing number: 1 + ____ = 5

    4

    Subtract 1 from 5: 5 − 1 = 4. Check: 1 + 4 = 5.

  5. 5. Find the missing number: 8 + ____ = 10

    2

    Subtract 8 from 10: 10 − 8 = 2. Check: 8 + 2 = 10.

  6. 6. Find the missing number: 7 + ____ = 8

    1

    Subtract 7 from 8: 8 − 7 = 1. Check: 7 + 1 = 8.

  7. 7. Find the missing number: 8 + ____ = 9

    1

    Subtract 8 from 9: 9 − 8 = 1. Check: 8 + 1 = 9.

  8. 8. Find the missing number: 3 + ____ = 10

    7

    Subtract 3 from 10: 10 − 3 = 7. Check: 3 + 7 = 10.

  9. 9. Find the missing number: 2 + ____ = 13

    11

    Subtract 2 from 13: 13 − 2 = 11. Check: 2 + 11 = 13.

  10. 10. Find the missing number: 10 + ____ = 11

    1

    Subtract 10 from 11: 11 − 10 = 1. Check: 10 + 1 = 11.

  11. 11. Find the missing number: 12 + ____ = 13

    1

    Subtract 12 from 13: 13 − 12 = 1. Check: 12 + 1 = 13.

  12. 12. Find the missing number: 5 + ____ = 6

    1

    Subtract 5 from 6: 6 − 5 = 1. Check: 5 + 1 = 6.

12 questions · Seed 43 · Age guidance, not curriculum certification