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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: 60 − ____ = 25
2. Find the missing number: 51 − ____ = 38
3. Find the missing number: 30 − ____ = 13
4. Find the missing number: 40 − ____ = 31
5. Find the missing number: 50 − ____ = 23
6. Find the missing number: 52 − ____ = 39
7. Find the missing number: 31 − ____ = 11
8. Find the missing number: 63 − ____ = 29
9. Find the missing number: 58 − ____ = 38
10. Find the missing number: 16 − ____ = 9
11. Find the missing number: 34 − ____ = 26
12. Find the missing number: 19 − ____ = 12
12 questions · Seed 117 · 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: 60 − ____ = 25
35Subtract 25 from 60: 60 − 25 = 35.
2. Find the missing number: 51 − ____ = 38
13Subtract 38 from 51: 51 − 38 = 13.
3. Find the missing number: 30 − ____ = 13
17Subtract 13 from 30: 30 − 13 = 17.
4. Find the missing number: 40 − ____ = 31
9Subtract 31 from 40: 40 − 31 = 9.
5. Find the missing number: 50 − ____ = 23
27Subtract 23 from 50: 50 − 23 = 27.
6. Find the missing number: 52 − ____ = 39
13Subtract 39 from 52: 52 − 39 = 13.
7. Find the missing number: 31 − ____ = 11
20Subtract 11 from 31: 31 − 11 = 20.
8. Find the missing number: 63 − ____ = 29
34Subtract 29 from 63: 63 − 29 = 34.
9. Find the missing number: 58 − ____ = 38
20Subtract 38 from 58: 58 − 38 = 20.
10. Find the missing number: 16 − ____ = 9
7Subtract 9 from 16: 16 − 9 = 7.
11. Find the missing number: 34 − ____ = 26
8Subtract 26 from 34: 34 − 26 = 8.
12. Find the missing number: 19 − ____ = 12
7Subtract 12 from 19: 19 − 12 = 7.
12 questions · Seed 117 · 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: 60 − ____ = 25
2. Find the missing number: 51 − ____ = 38
3. Find the missing number: 30 − ____ = 13
4. Find the missing number: 40 − ____ = 31
5. Find the missing number: 50 − ____ = 23
6. Find the missing number: 52 − ____ = 39
7. Find the missing number: 31 − ____ = 11
8. Find the missing number: 63 − ____ = 29
9. Find the missing number: 58 − ____ = 38
10. Find the missing number: 16 − ____ = 9
11. Find the missing number: 34 − ____ = 26
12. Find the missing number: 19 − ____ = 12
12 questions · Seed 117 · 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: 60 − ____ = 25
35Subtract 25 from 60: 60 − 25 = 35.
2. Find the missing number: 51 − ____ = 38
13Subtract 38 from 51: 51 − 38 = 13.
3. Find the missing number: 30 − ____ = 13
17Subtract 13 from 30: 30 − 13 = 17.
4. Find the missing number: 40 − ____ = 31
9Subtract 31 from 40: 40 − 31 = 9.
5. Find the missing number: 50 − ____ = 23
27Subtract 23 from 50: 50 − 23 = 27.
6. Find the missing number: 52 − ____ = 39
13Subtract 39 from 52: 52 − 39 = 13.
7. Find the missing number: 31 − ____ = 11
20Subtract 11 from 31: 31 − 11 = 20.
8. Find the missing number: 63 − ____ = 29
34Subtract 29 from 63: 63 − 29 = 34.
9. Find the missing number: 58 − ____ = 38
20Subtract 38 from 58: 58 − 38 = 20.
10. Find the missing number: 16 − ____ = 9
7Subtract 9 from 16: 16 − 9 = 7.
11. Find the missing number: 34 − ____ = 26
8Subtract 26 from 34: 34 − 26 = 8.
12. Find the missing number: 19 − ____ = 12
7Subtract 12 from 19: 19 − 12 = 7.
12 questions · Seed 117 · Age guidance, not curriculum certification