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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: 33 − ____ = 12
2. Find the missing number: 62 − ____ = 33
3. Find the missing number: 48 − ____ = 29
4. Find the missing number: 32 − ____ = 29
5. Find the missing number: 23 − ____ = 6
6. Find the missing number: 31 − ____ = 14
7. Find the missing number: 25 − ____ = 17
8. Find the missing number: 24 − ____ = 17
9. Find the missing number: 57 − ____ = 27
10. Find the missing number: 61 − ____ = 40
11. Find the missing number: 30 − ____ = 26
12. Find the missing number: 50 − ____ = 18
12 questions · Seed 96 · 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: 33 − ____ = 12
21Subtract 12 from 33: 33 − 12 = 21.
2. Find the missing number: 62 − ____ = 33
29Subtract 33 from 62: 62 − 33 = 29.
3. Find the missing number: 48 − ____ = 29
19Subtract 29 from 48: 48 − 29 = 19.
4. Find the missing number: 32 − ____ = 29
3Subtract 29 from 32: 32 − 29 = 3.
5. Find the missing number: 23 − ____ = 6
17Subtract 6 from 23: 23 − 6 = 17.
6. Find the missing number: 31 − ____ = 14
17Subtract 14 from 31: 31 − 14 = 17.
7. Find the missing number: 25 − ____ = 17
8Subtract 17 from 25: 25 − 17 = 8.
8. Find the missing number: 24 − ____ = 17
7Subtract 17 from 24: 24 − 17 = 7.
9. Find the missing number: 57 − ____ = 27
30Subtract 27 from 57: 57 − 27 = 30.
10. Find the missing number: 61 − ____ = 40
21Subtract 40 from 61: 61 − 40 = 21.
11. Find the missing number: 30 − ____ = 26
4Subtract 26 from 30: 30 − 26 = 4.
12. Find the missing number: 50 − ____ = 18
32Subtract 18 from 50: 50 − 18 = 32.
12 questions · Seed 96 · 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: 33 − ____ = 12
2. Find the missing number: 62 − ____ = 33
3. Find the missing number: 48 − ____ = 29
4. Find the missing number: 32 − ____ = 29
5. Find the missing number: 23 − ____ = 6
6. Find the missing number: 31 − ____ = 14
7. Find the missing number: 25 − ____ = 17
8. Find the missing number: 24 − ____ = 17
9. Find the missing number: 57 − ____ = 27
10. Find the missing number: 61 − ____ = 40
11. Find the missing number: 30 − ____ = 26
12. Find the missing number: 50 − ____ = 18
12 questions · Seed 96 · 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: 33 − ____ = 12
21Subtract 12 from 33: 33 − 12 = 21.
2. Find the missing number: 62 − ____ = 33
29Subtract 33 from 62: 62 − 33 = 29.
3. Find the missing number: 48 − ____ = 29
19Subtract 29 from 48: 48 − 29 = 19.
4. Find the missing number: 32 − ____ = 29
3Subtract 29 from 32: 32 − 29 = 3.
5. Find the missing number: 23 − ____ = 6
17Subtract 6 from 23: 23 − 6 = 17.
6. Find the missing number: 31 − ____ = 14
17Subtract 14 from 31: 31 − 14 = 17.
7. Find the missing number: 25 − ____ = 17
8Subtract 17 from 25: 25 − 17 = 8.
8. Find the missing number: 24 − ____ = 17
7Subtract 17 from 24: 24 − 17 = 7.
9. Find the missing number: 57 − ____ = 27
30Subtract 27 from 57: 57 − 27 = 30.
10. Find the missing number: 61 − ____ = 40
21Subtract 40 from 61: 61 − 40 = 21.
11. Find the missing number: 30 − ____ = 26
4Subtract 26 from 30: 30 − 26 = 4.
12. Find the missing number: 50 − ____ = 18
32Subtract 18 from 50: 50 − 18 = 32.
12 questions · Seed 96 · Age guidance, not curriculum certification