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Number bonds
Find the missing addend that completes a target whole number. Review suitability for your learners before teaching.
Worksheet StudioPractice pack · Ages 4-6
Number bonds
Take your time. Show your thinking.
1. Find the missing number: 1 + ____ = 7
1 · 7 · Number bonds2. Find the missing number: 5 + ____ = 7
5 · 7 · Number bonds3. Find the missing number: 7 + ____ = 13
7 · 13 · Number bonds4. Find the missing number: 1 + ____ = 5
1 · 5 · Number bonds5. Find the missing number: 8 + ____ = 11
8 · 11 · Number bonds6. Find the missing number: 13 + ____ = 14
13 · 14 · Number bonds7. Find the missing number: 10 + ____ = 12
10 · 12 · Number bonds8. Find the missing number: 4 + ____ = 12
4 · 12 · Number bonds9. Find the missing number: 2 + ____ = 10
2 · 10 · Number bonds10. Find the missing number: 3 + ____ = 15
3 · 15 · Number bonds11. Find the missing number: 8 + ____ = 10
8 · 10 · Number bonds12. Find the missing number: 2 + ____ = 11
2 · 11 · Number bonds
12 questions · Seed 104730 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 4-6
Number bonds
Answers and reasoning. Review before teaching.
1. Find the missing number: 1 + ____ = 7
6Subtract 1 from 7: 7 − 1 = 6. Check: 1 + 6 = 7.
2. Find the missing number: 5 + ____ = 7
2Subtract 5 from 7: 7 − 5 = 2. Check: 5 + 2 = 7.
3. Find the missing number: 7 + ____ = 13
6Subtract 7 from 13: 13 − 7 = 6. Check: 7 + 6 = 13.
4. Find the missing number: 1 + ____ = 5
4Subtract 1 from 5: 5 − 1 = 4. Check: 1 + 4 = 5.
5. Find the missing number: 8 + ____ = 11
3Subtract 8 from 11: 11 − 8 = 3. Check: 8 + 3 = 11.
6. Find the missing number: 13 + ____ = 14
1Subtract 13 from 14: 14 − 13 = 1. Check: 13 + 1 = 14.
7. Find the missing number: 10 + ____ = 12
2Subtract 10 from 12: 12 − 10 = 2. Check: 10 + 2 = 12.
8. Find the missing number: 4 + ____ = 12
8Subtract 4 from 12: 12 − 4 = 8. Check: 4 + 8 = 12.
9. Find the missing number: 2 + ____ = 10
8Subtract 2 from 10: 10 − 2 = 8. Check: 2 + 8 = 10.
10. Find the missing number: 3 + ____ = 15
12Subtract 3 from 15: 15 − 3 = 12. Check: 3 + 12 = 15.
11. Find the missing number: 8 + ____ = 10
2Subtract 8 from 10: 10 − 8 = 2. Check: 8 + 2 = 10.
12. Find the missing number: 2 + ____ = 11
9Subtract 2 from 11: 11 − 2 = 9. Check: 2 + 9 = 11.
12 questions · Seed 104730 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 4-6
Number bonds
Take your time. Show your thinking.
1. Find the missing number: 1 + ____ = 7
1 · 7 · Number bonds2. Find the missing number: 5 + ____ = 7
5 · 7 · Number bonds3. Find the missing number: 7 + ____ = 13
7 · 13 · Number bonds4. Find the missing number: 1 + ____ = 5
1 · 5 · Number bonds5. Find the missing number: 8 + ____ = 11
8 · 11 · Number bonds6. Find the missing number: 13 + ____ = 14
13 · 14 · Number bonds7. Find the missing number: 10 + ____ = 12
10 · 12 · Number bonds8. Find the missing number: 4 + ____ = 12
4 · 12 · Number bonds9. Find the missing number: 2 + ____ = 10
2 · 10 · Number bonds10. Find the missing number: 3 + ____ = 15
3 · 15 · Number bonds11. Find the missing number: 8 + ____ = 10
8 · 10 · Number bonds12. Find the missing number: 2 + ____ = 11
2 · 11 · Number bonds
12 questions · Seed 104730 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 4-6
Number bonds
Answers and reasoning. Review before teaching.
1. Find the missing number: 1 + ____ = 7
6Subtract 1 from 7: 7 − 1 = 6. Check: 1 + 6 = 7.
2. Find the missing number: 5 + ____ = 7
2Subtract 5 from 7: 7 − 5 = 2. Check: 5 + 2 = 7.
3. Find the missing number: 7 + ____ = 13
6Subtract 7 from 13: 13 − 7 = 6. Check: 7 + 6 = 13.
4. Find the missing number: 1 + ____ = 5
4Subtract 1 from 5: 5 − 1 = 4. Check: 1 + 4 = 5.
5. Find the missing number: 8 + ____ = 11
3Subtract 8 from 11: 11 − 8 = 3. Check: 8 + 3 = 11.
6. Find the missing number: 13 + ____ = 14
1Subtract 13 from 14: 14 − 13 = 1. Check: 13 + 1 = 14.
7. Find the missing number: 10 + ____ = 12
2Subtract 10 from 12: 12 − 10 = 2. Check: 10 + 2 = 12.
8. Find the missing number: 4 + ____ = 12
8Subtract 4 from 12: 12 − 4 = 8. Check: 4 + 8 = 12.
9. Find the missing number: 2 + ____ = 10
8Subtract 2 from 10: 10 − 2 = 8. Check: 2 + 8 = 10.
10. Find the missing number: 3 + ____ = 15
12Subtract 3 from 15: 15 − 3 = 12. Check: 3 + 12 = 15.
11. Find the missing number: 8 + ____ = 10
2Subtract 8 from 10: 10 − 8 = 2. Check: 8 + 2 = 10.
12. Find the missing number: 2 + ____ = 11
9Subtract 2 from 11: 11 − 2 = 9. Check: 2 + 9 = 11.
12 questions · Seed 104730 · Age guidance, not curriculum certification