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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: 68 − ____ = 38
2. Find the missing number: 45 − ____ = 19
3. Find the missing number: 36 − ____ = 26
4. Find the missing number: 42 − ____ = 20
5. Find the missing number: 32 − ____ = 12
6. Find the missing number: 48 − ____ = 14
7. Find the missing number: 31 − ____ = 11
8. Find the missing number: 45 − ____ = 40
9. Find the missing number: 38 − ____ = 22
10. Find the missing number: 54 − ____ = 36
11. Find the missing number: 54 − ____ = 32
12. Find the missing number: 32 − ____ = 28
12 questions · Seed 76 · 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: 68 − ____ = 38
30Subtract 38 from 68: 68 − 38 = 30.
2. Find the missing number: 45 − ____ = 19
26Subtract 19 from 45: 45 − 19 = 26.
3. Find the missing number: 36 − ____ = 26
10Subtract 26 from 36: 36 − 26 = 10.
4. Find the missing number: 42 − ____ = 20
22Subtract 20 from 42: 42 − 20 = 22.
5. Find the missing number: 32 − ____ = 12
20Subtract 12 from 32: 32 − 12 = 20.
6. Find the missing number: 48 − ____ = 14
34Subtract 14 from 48: 48 − 14 = 34.
7. Find the missing number: 31 − ____ = 11
20Subtract 11 from 31: 31 − 11 = 20.
8. Find the missing number: 45 − ____ = 40
5Subtract 40 from 45: 45 − 40 = 5.
9. Find the missing number: 38 − ____ = 22
16Subtract 22 from 38: 38 − 22 = 16.
10. Find the missing number: 54 − ____ = 36
18Subtract 36 from 54: 54 − 36 = 18.
11. Find the missing number: 54 − ____ = 32
22Subtract 32 from 54: 54 − 32 = 22.
12. Find the missing number: 32 − ____ = 28
4Subtract 28 from 32: 32 − 28 = 4.
12 questions · Seed 76 · 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: 68 − ____ = 38
2. Find the missing number: 45 − ____ = 19
3. Find the missing number: 36 − ____ = 26
4. Find the missing number: 42 − ____ = 20
5. Find the missing number: 32 − ____ = 12
6. Find the missing number: 48 − ____ = 14
7. Find the missing number: 31 − ____ = 11
8. Find the missing number: 45 − ____ = 40
9. Find the missing number: 38 − ____ = 22
10. Find the missing number: 54 − ____ = 36
11. Find the missing number: 54 − ____ = 32
12. Find the missing number: 32 − ____ = 28
12 questions · Seed 76 · 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: 68 − ____ = 38
30Subtract 38 from 68: 68 − 38 = 30.
2. Find the missing number: 45 − ____ = 19
26Subtract 19 from 45: 45 − 19 = 26.
3. Find the missing number: 36 − ____ = 26
10Subtract 26 from 36: 36 − 26 = 10.
4. Find the missing number: 42 − ____ = 20
22Subtract 20 from 42: 42 − 20 = 22.
5. Find the missing number: 32 − ____ = 12
20Subtract 12 from 32: 32 − 12 = 20.
6. Find the missing number: 48 − ____ = 14
34Subtract 14 from 48: 48 − 14 = 34.
7. Find the missing number: 31 − ____ = 11
20Subtract 11 from 31: 31 − 11 = 20.
8. Find the missing number: 45 − ____ = 40
5Subtract 40 from 45: 45 − 40 = 5.
9. Find the missing number: 38 − ____ = 22
16Subtract 22 from 38: 38 − 22 = 16.
10. Find the missing number: 54 − ____ = 36
18Subtract 36 from 54: 54 − 36 = 18.
11. Find the missing number: 54 − ____ = 32
22Subtract 32 from 54: 54 − 32 = 22.
12. Find the missing number: 32 − ____ = 28
4Subtract 28 from 32: 32 − 28 = 4.
12 questions · Seed 76 · Age guidance, not curriculum certification