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Missing number in subtraction
Find the unknown number subtracted from a starting total to leave a given remainder. Review suitability for your learners before teaching.
Worksheet StudioPractice pack · Ages 7-9
Missing number in subtraction
Take your time. Show your thinking.
1. Find the missing number: 61 − ____ = 30
2. Find the missing number: 41 − ____ = 37
3. Find the missing number: 31 − ____ = 28
4. Find the missing number: 58 − ____ = 37
5. Find the missing number: 32 − ____ = 12
6. Find the missing number: 15 − ____ = 12
7. Find the missing number: 46 − ____ = 34
8. Find the missing number: 51 − ____ = 28
9. Find the missing number: 43 − ____ = 32
10. Find the missing number: 47 − ____ = 25
11. Find the missing number: 19 − ____ = 9
12. Find the missing number: 33 − ____ = 27
12 questions · Seed 116 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 7-9
Missing number in subtraction
Answers and reasoning. Review before teaching.
1. Find the missing number: 61 − ____ = 30
31Subtract 30 from 61: 61 − 30 = 31.
2. Find the missing number: 41 − ____ = 37
4Subtract 37 from 41: 41 − 37 = 4.
3. Find the missing number: 31 − ____ = 28
3Subtract 28 from 31: 31 − 28 = 3.
4. Find the missing number: 58 − ____ = 37
21Subtract 37 from 58: 58 − 37 = 21.
5. Find the missing number: 32 − ____ = 12
20Subtract 12 from 32: 32 − 12 = 20.
6. Find the missing number: 15 − ____ = 12
3Subtract 12 from 15: 15 − 12 = 3.
7. Find the missing number: 46 − ____ = 34
12Subtract 34 from 46: 46 − 34 = 12.
8. Find the missing number: 51 − ____ = 28
23Subtract 28 from 51: 51 − 28 = 23.
9. Find the missing number: 43 − ____ = 32
11Subtract 32 from 43: 43 − 32 = 11.
10. Find the missing number: 47 − ____ = 25
22Subtract 25 from 47: 47 − 25 = 22.
11. Find the missing number: 19 − ____ = 9
10Subtract 9 from 19: 19 − 9 = 10.
12. Find the missing number: 33 − ____ = 27
6Subtract 27 from 33: 33 − 27 = 6.
12 questions · Seed 116 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 7-9
Missing number in subtraction
Take your time. Show your thinking.
1. Find the missing number: 61 − ____ = 30
2. Find the missing number: 41 − ____ = 37
3. Find the missing number: 31 − ____ = 28
4. Find the missing number: 58 − ____ = 37
5. Find the missing number: 32 − ____ = 12
6. Find the missing number: 15 − ____ = 12
7. Find the missing number: 46 − ____ = 34
8. Find the missing number: 51 − ____ = 28
9. Find the missing number: 43 − ____ = 32
10. Find the missing number: 47 − ____ = 25
11. Find the missing number: 19 − ____ = 9
12. Find the missing number: 33 − ____ = 27
12 questions · Seed 116 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 7-9
Missing number in subtraction
Answers and reasoning. Review before teaching.
1. Find the missing number: 61 − ____ = 30
31Subtract 30 from 61: 61 − 30 = 31.
2. Find the missing number: 41 − ____ = 37
4Subtract 37 from 41: 41 − 37 = 4.
3. Find the missing number: 31 − ____ = 28
3Subtract 28 from 31: 31 − 28 = 3.
4. Find the missing number: 58 − ____ = 37
21Subtract 37 from 58: 58 − 37 = 21.
5. Find the missing number: 32 − ____ = 12
20Subtract 12 from 32: 32 − 12 = 20.
6. Find the missing number: 15 − ____ = 12
3Subtract 12 from 15: 15 − 12 = 3.
7. Find the missing number: 46 − ____ = 34
12Subtract 34 from 46: 46 − 34 = 12.
8. Find the missing number: 51 − ____ = 28
23Subtract 28 from 51: 51 − 28 = 23.
9. Find the missing number: 43 − ____ = 32
11Subtract 32 from 43: 43 − 32 = 11.
10. Find the missing number: 47 − ____ = 25
22Subtract 25 from 47: 47 − 25 = 22.
11. Find the missing number: 19 − ____ = 9
10Subtract 9 from 19: 19 − 9 = 10.
12. Find the missing number: 33 − ____ = 27
6Subtract 27 from 33: 33 − 27 = 6.
12 questions · Seed 116 · Age guidance, not curriculum certification