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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: 56 − ____ = 34
2. Find the missing number: 39 − ____ = 17
3. Find the missing number: 24 − ____ = 8
4. Find the missing number: 21 − ____ = 13
5. Find the missing number: 47 − ____ = 33
6. Find the missing number: 47 − ____ = 27
7. Find the missing number: 33 − ____ = 19
8. Find the missing number: 43 − ____ = 20
9. Find the missing number: 35 − ____ = 20
10. Find the missing number: 73 − ____ = 39
11. Find the missing number: 40 − ____ = 36
12. Find the missing number: 50 − ____ = 31
12 questions · Seed 104746 · 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: 56 − ____ = 34
22Subtract 34 from 56: 56 − 34 = 22.
2. Find the missing number: 39 − ____ = 17
22Subtract 17 from 39: 39 − 17 = 22.
3. Find the missing number: 24 − ____ = 8
16Subtract 8 from 24: 24 − 8 = 16.
4. Find the missing number: 21 − ____ = 13
8Subtract 13 from 21: 21 − 13 = 8.
5. Find the missing number: 47 − ____ = 33
14Subtract 33 from 47: 47 − 33 = 14.
6. Find the missing number: 47 − ____ = 27
20Subtract 27 from 47: 47 − 27 = 20.
7. Find the missing number: 33 − ____ = 19
14Subtract 19 from 33: 33 − 19 = 14.
8. Find the missing number: 43 − ____ = 20
23Subtract 20 from 43: 43 − 20 = 23.
9. Find the missing number: 35 − ____ = 20
15Subtract 20 from 35: 35 − 20 = 15.
10. Find the missing number: 73 − ____ = 39
34Subtract 39 from 73: 73 − 39 = 34.
11. Find the missing number: 40 − ____ = 36
4Subtract 36 from 40: 40 − 36 = 4.
12. Find the missing number: 50 − ____ = 31
19Subtract 31 from 50: 50 − 31 = 19.
12 questions · Seed 104746 · 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: 56 − ____ = 34
2. Find the missing number: 39 − ____ = 17
3. Find the missing number: 24 − ____ = 8
4. Find the missing number: 21 − ____ = 13
5. Find the missing number: 47 − ____ = 33
6. Find the missing number: 47 − ____ = 27
7. Find the missing number: 33 − ____ = 19
8. Find the missing number: 43 − ____ = 20
9. Find the missing number: 35 − ____ = 20
10. Find the missing number: 73 − ____ = 39
11. Find the missing number: 40 − ____ = 36
12. Find the missing number: 50 − ____ = 31
12 questions · Seed 104746 · 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: 56 − ____ = 34
22Subtract 34 from 56: 56 − 34 = 22.
2. Find the missing number: 39 − ____ = 17
22Subtract 17 from 39: 39 − 17 = 22.
3. Find the missing number: 24 − ____ = 8
16Subtract 8 from 24: 24 − 8 = 16.
4. Find the missing number: 21 − ____ = 13
8Subtract 13 from 21: 21 − 13 = 8.
5. Find the missing number: 47 − ____ = 33
14Subtract 33 from 47: 47 − 33 = 14.
6. Find the missing number: 47 − ____ = 27
20Subtract 27 from 47: 47 − 27 = 20.
7. Find the missing number: 33 − ____ = 19
14Subtract 19 from 33: 33 − 19 = 14.
8. Find the missing number: 43 − ____ = 20
23Subtract 20 from 43: 43 − 20 = 23.
9. Find the missing number: 35 − ____ = 20
15Subtract 20 from 35: 35 − 20 = 15.
10. Find the missing number: 73 − ____ = 39
34Subtract 39 from 73: 73 − 39 = 34.
11. Find the missing number: 40 − ____ = 36
4Subtract 36 from 40: 40 − 36 = 4.
12. Find the missing number: 50 − ____ = 31
19Subtract 31 from 50: 50 − 31 = 19.
12 questions · Seed 104746 · Age guidance, not curriculum certification