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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 7-9
Number bonds
Take your time. Show your thinking.
1. Find the missing number: 6 + ____ = 36
6 · 36 · Number bonds2. Find the missing number: 25 + ____ = 35
25 · 35 · Number bonds3. Find the missing number: 43 + ____ = 80
43 · 80 · Number bonds4. Find the missing number: 5 + ____ = 26
5 · 26 · Number bonds5. Find the missing number: 48 + ____ = 64
48 · 64 · Number bonds6. Find the missing number: 85 + ____ = 92
85 · 92 · Number bonds7. Find the missing number: 68 + ____ = 76
68 · 76 · Number bonds8. Find the missing number: 24 + ____ = 72
24 · 72 · Number bonds9. Find the missing number: 11 + ____ = 60
11 · 60 · Number bonds10. Find the missing number: 20 + ____ = 94
20 · 94 · Number bonds11. Find the missing number: 45 + ____ = 57
45 · 57 · Number bonds12. Find the missing number: 8 + ____ = 70
8 · 70 · Number bonds
12 questions · Seed 104730 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 7-9
Number bonds
Answers and reasoning. Review before teaching.
1. Find the missing number: 6 + ____ = 36
30Subtract 6 from 36: 36 − 6 = 30. Check: 6 + 30 = 36.
2. Find the missing number: 25 + ____ = 35
10Subtract 25 from 35: 35 − 25 = 10. Check: 25 + 10 = 35.
3. Find the missing number: 43 + ____ = 80
37Subtract 43 from 80: 80 − 43 = 37. Check: 43 + 37 = 80.
4. Find the missing number: 5 + ____ = 26
21Subtract 5 from 26: 26 − 5 = 21. Check: 5 + 21 = 26.
5. Find the missing number: 48 + ____ = 64
16Subtract 48 from 64: 64 − 48 = 16. Check: 48 + 16 = 64.
6. Find the missing number: 85 + ____ = 92
7Subtract 85 from 92: 92 − 85 = 7. Check: 85 + 7 = 92.
7. Find the missing number: 68 + ____ = 76
8Subtract 68 from 76: 76 − 68 = 8. Check: 68 + 8 = 76.
8. Find the missing number: 24 + ____ = 72
48Subtract 24 from 72: 72 − 24 = 48. Check: 24 + 48 = 72.
9. Find the missing number: 11 + ____ = 60
49Subtract 11 from 60: 60 − 11 = 49. Check: 11 + 49 = 60.
10. Find the missing number: 20 + ____ = 94
74Subtract 20 from 94: 94 − 20 = 74. Check: 20 + 74 = 94.
11. Find the missing number: 45 + ____ = 57
12Subtract 45 from 57: 57 − 45 = 12. Check: 45 + 12 = 57.
12. Find the missing number: 8 + ____ = 70
62Subtract 8 from 70: 70 − 8 = 62. Check: 8 + 62 = 70.
12 questions · Seed 104730 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 7-9
Number bonds
Take your time. Show your thinking.
1. Find the missing number: 6 + ____ = 36
6 · 36 · Number bonds2. Find the missing number: 25 + ____ = 35
25 · 35 · Number bonds3. Find the missing number: 43 + ____ = 80
43 · 80 · Number bonds4. Find the missing number: 5 + ____ = 26
5 · 26 · Number bonds5. Find the missing number: 48 + ____ = 64
48 · 64 · Number bonds6. Find the missing number: 85 + ____ = 92
85 · 92 · Number bonds7. Find the missing number: 68 + ____ = 76
68 · 76 · Number bonds8. Find the missing number: 24 + ____ = 72
24 · 72 · Number bonds9. Find the missing number: 11 + ____ = 60
11 · 60 · Number bonds10. Find the missing number: 20 + ____ = 94
20 · 94 · Number bonds11. Find the missing number: 45 + ____ = 57
45 · 57 · Number bonds12. Find the missing number: 8 + ____ = 70
8 · 70 · Number bonds
12 questions · Seed 104730 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 7-9
Number bonds
Answers and reasoning. Review before teaching.
1. Find the missing number: 6 + ____ = 36
30Subtract 6 from 36: 36 − 6 = 30. Check: 6 + 30 = 36.
2. Find the missing number: 25 + ____ = 35
10Subtract 25 from 35: 35 − 25 = 10. Check: 25 + 10 = 35.
3. Find the missing number: 43 + ____ = 80
37Subtract 43 from 80: 80 − 43 = 37. Check: 43 + 37 = 80.
4. Find the missing number: 5 + ____ = 26
21Subtract 5 from 26: 26 − 5 = 21. Check: 5 + 21 = 26.
5. Find the missing number: 48 + ____ = 64
16Subtract 48 from 64: 64 − 48 = 16. Check: 48 + 16 = 64.
6. Find the missing number: 85 + ____ = 92
7Subtract 85 from 92: 92 − 85 = 7. Check: 85 + 7 = 92.
7. Find the missing number: 68 + ____ = 76
8Subtract 68 from 76: 76 − 68 = 8. Check: 68 + 8 = 76.
8. Find the missing number: 24 + ____ = 72
48Subtract 24 from 72: 72 − 24 = 48. Check: 24 + 48 = 72.
9. Find the missing number: 11 + ____ = 60
49Subtract 11 from 60: 60 − 11 = 49. Check: 11 + 49 = 60.
10. Find the missing number: 20 + ____ = 94
74Subtract 20 from 94: 94 − 20 = 74. Check: 20 + 74 = 94.
11. Find the missing number: 45 + ____ = 57
12Subtract 45 from 57: 57 − 45 = 12. Check: 45 + 12 = 57.
12. Find the missing number: 8 + ____ = 70
62Subtract 8 from 70: 70 − 8 = 62. Check: 8 + 62 = 70.
12 questions · Seed 104730 · Age guidance, not curriculum certification