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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: 27 − ____ = 19
2. Find the missing number: 48 − ____ = 32
3. Find the missing number: 45 − ____ = 10
4. Find the missing number: 30 − ____ = 6
5. Find the missing number: 61 − ____ = 27
6. Find the missing number: 42 − ____ = 21
7. Find the missing number: 23 − ____ = 6
8. Find the missing number: 51 − ____ = 29
9. Find the missing number: 58 − ____ = 36
10. Find the missing number: 56 − ____ = 31
11. Find the missing number: 33 − ____ = 23
12. Find the missing number: 37 − ____ = 6
12 questions · Seed 104764 · 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: 27 − ____ = 19
8Subtract 19 from 27: 27 − 19 = 8.
2. Find the missing number: 48 − ____ = 32
16Subtract 32 from 48: 48 − 32 = 16.
3. Find the missing number: 45 − ____ = 10
35Subtract 10 from 45: 45 − 10 = 35.
4. Find the missing number: 30 − ____ = 6
24Subtract 6 from 30: 30 − 6 = 24.
5. Find the missing number: 61 − ____ = 27
34Subtract 27 from 61: 61 − 27 = 34.
6. Find the missing number: 42 − ____ = 21
21Subtract 21 from 42: 42 − 21 = 21.
7. Find the missing number: 23 − ____ = 6
17Subtract 6 from 23: 23 − 6 = 17.
8. Find the missing number: 51 − ____ = 29
22Subtract 29 from 51: 51 − 29 = 22.
9. Find the missing number: 58 − ____ = 36
22Subtract 36 from 58: 58 − 36 = 22.
10. Find the missing number: 56 − ____ = 31
25Subtract 31 from 56: 56 − 31 = 25.
11. Find the missing number: 33 − ____ = 23
10Subtract 23 from 33: 33 − 23 = 10.
12. Find the missing number: 37 − ____ = 6
31Subtract 6 from 37: 37 − 6 = 31.
12 questions · Seed 104764 · 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: 27 − ____ = 19
2. Find the missing number: 48 − ____ = 32
3. Find the missing number: 45 − ____ = 10
4. Find the missing number: 30 − ____ = 6
5. Find the missing number: 61 − ____ = 27
6. Find the missing number: 42 − ____ = 21
7. Find the missing number: 23 − ____ = 6
8. Find the missing number: 51 − ____ = 29
9. Find the missing number: 58 − ____ = 36
10. Find the missing number: 56 − ____ = 31
11. Find the missing number: 33 − ____ = 23
12. Find the missing number: 37 − ____ = 6
12 questions · Seed 104764 · 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: 27 − ____ = 19
8Subtract 19 from 27: 27 − 19 = 8.
2. Find the missing number: 48 − ____ = 32
16Subtract 32 from 48: 48 − 32 = 16.
3. Find the missing number: 45 − ____ = 10
35Subtract 10 from 45: 45 − 10 = 35.
4. Find the missing number: 30 − ____ = 6
24Subtract 6 from 30: 30 − 6 = 24.
5. Find the missing number: 61 − ____ = 27
34Subtract 27 from 61: 61 − 27 = 34.
6. Find the missing number: 42 − ____ = 21
21Subtract 21 from 42: 42 − 21 = 21.
7. Find the missing number: 23 − ____ = 6
17Subtract 6 from 23: 23 − 6 = 17.
8. Find the missing number: 51 − ____ = 29
22Subtract 29 from 51: 51 − 29 = 22.
9. Find the missing number: 58 − ____ = 36
22Subtract 36 from 58: 58 − 36 = 22.
10. Find the missing number: 56 − ____ = 31
25Subtract 31 from 56: 56 − 31 = 25.
11. Find the missing number: 33 − ____ = 23
10Subtract 23 from 33: 33 − 23 = 10.
12. Find the missing number: 37 − ____ = 6
31Subtract 6 from 37: 37 − 6 = 31.
12 questions · Seed 104764 · Age guidance, not curriculum certification