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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 10-12
Missing number in subtraction
Take your time. Show your thinking.
1. Find the missing number: 44 − ____ = 40
2. Find the missing number: 63 − ____ = 39
3. Find the missing number: 29 − ____ = 25
4. Find the missing number: 37 − ____ = 25
5. Find the missing number: 30 − ____ = 24
6. Find the missing number: 44 − ____ = 33
7. Find the missing number: 35 − ____ = 32
8. Find the missing number: 34 − ____ = 28
9. Find the missing number: 37 − ____ = 27
10. Find the missing number: 38 − ____ = 30
11. Find the missing number: 32 − ____ = 26
12. Find the missing number: 43 − ____ = 32
12 questions · Seed 82 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 10-12
Missing number in subtraction
Answers and reasoning. Review before teaching.
1. Find the missing number: 44 − ____ = 40
4Subtract 40 from 44: 44 − 40 = 4.
2. Find the missing number: 63 − ____ = 39
24Subtract 39 from 63: 63 − 39 = 24.
3. Find the missing number: 29 − ____ = 25
4Subtract 25 from 29: 29 − 25 = 4.
4. Find the missing number: 37 − ____ = 25
12Subtract 25 from 37: 37 − 25 = 12.
5. Find the missing number: 30 − ____ = 24
6Subtract 24 from 30: 30 − 24 = 6.
6. Find the missing number: 44 − ____ = 33
11Subtract 33 from 44: 44 − 33 = 11.
7. Find the missing number: 35 − ____ = 32
3Subtract 32 from 35: 35 − 32 = 3.
8. Find the missing number: 34 − ____ = 28
6Subtract 28 from 34: 34 − 28 = 6.
9. Find the missing number: 37 − ____ = 27
10Subtract 27 from 37: 37 − 27 = 10.
10. Find the missing number: 38 − ____ = 30
8Subtract 30 from 38: 38 − 30 = 8.
11. Find the missing number: 32 − ____ = 26
6Subtract 26 from 32: 32 − 26 = 6.
12. Find the missing number: 43 − ____ = 32
11Subtract 32 from 43: 43 − 32 = 11.
12 questions · Seed 82 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 10-12
Missing number in subtraction
Take your time. Show your thinking.
1. Find the missing number: 44 − ____ = 40
2. Find the missing number: 63 − ____ = 39
3. Find the missing number: 29 − ____ = 25
4. Find the missing number: 37 − ____ = 25
5. Find the missing number: 30 − ____ = 24
6. Find the missing number: 44 − ____ = 33
7. Find the missing number: 35 − ____ = 32
8. Find the missing number: 34 − ____ = 28
9. Find the missing number: 37 − ____ = 27
10. Find the missing number: 38 − ____ = 30
11. Find the missing number: 32 − ____ = 26
12. Find the missing number: 43 − ____ = 32
12 questions · Seed 82 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 10-12
Missing number in subtraction
Answers and reasoning. Review before teaching.
1. Find the missing number: 44 − ____ = 40
4Subtract 40 from 44: 44 − 40 = 4.
2. Find the missing number: 63 − ____ = 39
24Subtract 39 from 63: 63 − 39 = 24.
3. Find the missing number: 29 − ____ = 25
4Subtract 25 from 29: 29 − 25 = 4.
4. Find the missing number: 37 − ____ = 25
12Subtract 25 from 37: 37 − 25 = 12.
5. Find the missing number: 30 − ____ = 24
6Subtract 24 from 30: 30 − 24 = 6.
6. Find the missing number: 44 − ____ = 33
11Subtract 33 from 44: 44 − 33 = 11.
7. Find the missing number: 35 − ____ = 32
3Subtract 32 from 35: 35 − 32 = 3.
8. Find the missing number: 34 − ____ = 28
6Subtract 28 from 34: 34 − 28 = 6.
9. Find the missing number: 37 − ____ = 27
10Subtract 27 from 37: 37 − 27 = 10.
10. Find the missing number: 38 − ____ = 30
8Subtract 30 from 38: 38 − 30 = 8.
11. Find the missing number: 32 − ____ = 26
6Subtract 26 from 32: 32 − 26 = 6.
12. Find the missing number: 43 − ____ = 32
11Subtract 32 from 43: 43 − 32 = 11.
12 questions · Seed 82 · Age guidance, not curriculum certification