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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: 48 − ____ = 25
2. Find the missing number: 54 − ____ = 30
3. Find the missing number: 38 − ____ = 17
4. Find the missing number: 36 − ____ = 19
5. Find the missing number: 54 − ____ = 37
6. Find the missing number: 48 − ____ = 28
7. Find the missing number: 23 − ____ = 17
8. Find the missing number: 42 − ____ = 29
9. Find the missing number: 27 − ____ = 24
10. Find the missing number: 30 − ____ = 20
11. Find the missing number: 32 − ____ = 22
12. Find the missing number: 24 − ____ = 10
12 questions · Seed 52 · 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: 48 − ____ = 25
23Subtract 25 from 48: 48 − 25 = 23.
2. Find the missing number: 54 − ____ = 30
24Subtract 30 from 54: 54 − 30 = 24.
3. Find the missing number: 38 − ____ = 17
21Subtract 17 from 38: 38 − 17 = 21.
4. Find the missing number: 36 − ____ = 19
17Subtract 19 from 36: 36 − 19 = 17.
5. Find the missing number: 54 − ____ = 37
17Subtract 37 from 54: 54 − 37 = 17.
6. Find the missing number: 48 − ____ = 28
20Subtract 28 from 48: 48 − 28 = 20.
7. Find the missing number: 23 − ____ = 17
6Subtract 17 from 23: 23 − 17 = 6.
8. Find the missing number: 42 − ____ = 29
13Subtract 29 from 42: 42 − 29 = 13.
9. Find the missing number: 27 − ____ = 24
3Subtract 24 from 27: 27 − 24 = 3.
10. Find the missing number: 30 − ____ = 20
10Subtract 20 from 30: 30 − 20 = 10.
11. Find the missing number: 32 − ____ = 22
10Subtract 22 from 32: 32 − 22 = 10.
12. Find the missing number: 24 − ____ = 10
14Subtract 10 from 24: 24 − 10 = 14.
12 questions · Seed 52 · 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: 48 − ____ = 25
2. Find the missing number: 54 − ____ = 30
3. Find the missing number: 38 − ____ = 17
4. Find the missing number: 36 − ____ = 19
5. Find the missing number: 54 − ____ = 37
6. Find the missing number: 48 − ____ = 28
7. Find the missing number: 23 − ____ = 17
8. Find the missing number: 42 − ____ = 29
9. Find the missing number: 27 − ____ = 24
10. Find the missing number: 30 − ____ = 20
11. Find the missing number: 32 − ____ = 22
12. Find the missing number: 24 − ____ = 10
12 questions · Seed 52 · 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: 48 − ____ = 25
23Subtract 25 from 48: 48 − 25 = 23.
2. Find the missing number: 54 − ____ = 30
24Subtract 30 from 54: 54 − 30 = 24.
3. Find the missing number: 38 − ____ = 17
21Subtract 17 from 38: 38 − 17 = 21.
4. Find the missing number: 36 − ____ = 19
17Subtract 19 from 36: 36 − 19 = 17.
5. Find the missing number: 54 − ____ = 37
17Subtract 37 from 54: 54 − 37 = 17.
6. Find the missing number: 48 − ____ = 28
20Subtract 28 from 48: 48 − 28 = 20.
7. Find the missing number: 23 − ____ = 17
6Subtract 17 from 23: 23 − 17 = 6.
8. Find the missing number: 42 − ____ = 29
13Subtract 29 from 42: 42 − 29 = 13.
9. Find the missing number: 27 − ____ = 24
3Subtract 24 from 27: 27 − 24 = 3.
10. Find the missing number: 30 − ____ = 20
10Subtract 20 from 30: 30 − 20 = 10.
11. Find the missing number: 32 − ____ = 22
10Subtract 22 from 32: 32 − 22 = 10.
12. Find the missing number: 24 − ____ = 10
14Subtract 10 from 24: 24 − 10 = 14.
12 questions · Seed 52 · Age guidance, not curriculum certification