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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: 40 − ____ = 17
2. Find the missing number: 59 − ____ = 29
3. Find the missing number: 31 − ____ = 15
4. Find the missing number: 48 − ____ = 22
5. Find the missing number: 48 − ____ = 13
6. Find the missing number: 33 − ____ = 10
7. Find the missing number: 24 − ____ = 15
8. Find the missing number: 65 − ____ = 31
9. Find the missing number: 71 − ____ = 40
10. Find the missing number: 45 − ____ = 23
11. Find the missing number: 33 − ____ = 13
12. Find the missing number: 56 − ____ = 37
12 questions · Seed 104773 · 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: 40 − ____ = 17
23Subtract 17 from 40: 40 − 17 = 23.
2. Find the missing number: 59 − ____ = 29
30Subtract 29 from 59: 59 − 29 = 30.
3. Find the missing number: 31 − ____ = 15
16Subtract 15 from 31: 31 − 15 = 16.
4. Find the missing number: 48 − ____ = 22
26Subtract 22 from 48: 48 − 22 = 26.
5. Find the missing number: 48 − ____ = 13
35Subtract 13 from 48: 48 − 13 = 35.
6. Find the missing number: 33 − ____ = 10
23Subtract 10 from 33: 33 − 10 = 23.
7. Find the missing number: 24 − ____ = 15
9Subtract 15 from 24: 24 − 15 = 9.
8. Find the missing number: 65 − ____ = 31
34Subtract 31 from 65: 65 − 31 = 34.
9. Find the missing number: 71 − ____ = 40
31Subtract 40 from 71: 71 − 40 = 31.
10. Find the missing number: 45 − ____ = 23
22Subtract 23 from 45: 45 − 23 = 22.
11. Find the missing number: 33 − ____ = 13
20Subtract 13 from 33: 33 − 13 = 20.
12. Find the missing number: 56 − ____ = 37
19Subtract 37 from 56: 56 − 37 = 19.
12 questions · Seed 104773 · 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: 40 − ____ = 17
2. Find the missing number: 59 − ____ = 29
3. Find the missing number: 31 − ____ = 15
4. Find the missing number: 48 − ____ = 22
5. Find the missing number: 48 − ____ = 13
6. Find the missing number: 33 − ____ = 10
7. Find the missing number: 24 − ____ = 15
8. Find the missing number: 65 − ____ = 31
9. Find the missing number: 71 − ____ = 40
10. Find the missing number: 45 − ____ = 23
11. Find the missing number: 33 − ____ = 13
12. Find the missing number: 56 − ____ = 37
12 questions · Seed 104773 · 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: 40 − ____ = 17
23Subtract 17 from 40: 40 − 17 = 23.
2. Find the missing number: 59 − ____ = 29
30Subtract 29 from 59: 59 − 29 = 30.
3. Find the missing number: 31 − ____ = 15
16Subtract 15 from 31: 31 − 15 = 16.
4. Find the missing number: 48 − ____ = 22
26Subtract 22 from 48: 48 − 22 = 26.
5. Find the missing number: 48 − ____ = 13
35Subtract 13 from 48: 48 − 13 = 35.
6. Find the missing number: 33 − ____ = 10
23Subtract 10 from 33: 33 − 10 = 23.
7. Find the missing number: 24 − ____ = 15
9Subtract 15 from 24: 24 − 15 = 9.
8. Find the missing number: 65 − ____ = 31
34Subtract 31 from 65: 65 − 31 = 34.
9. Find the missing number: 71 − ____ = 40
31Subtract 40 from 71: 71 − 40 = 31.
10. Find the missing number: 45 − ____ = 23
22Subtract 23 from 45: 45 − 23 = 22.
11. Find the missing number: 33 − ____ = 13
20Subtract 13 from 33: 33 − 13 = 20.
12. Find the missing number: 56 − ____ = 37
19Subtract 37 from 56: 56 − 37 = 19.
12 questions · Seed 104773 · Age guidance, not curriculum certification