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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 − ____ = 22
2. Find the missing number: 31 − ____ = 8
3. Find the missing number: 33 − ____ = 15
4. Find the missing number: 66 − ____ = 32
5. Find the missing number: 61 − ____ = 29
6. Find the missing number: 50 − ____ = 18
7. Find the missing number: 48 − ____ = 31
8. Find the missing number: 21 − ____ = 18
9. Find the missing number: 48 − ____ = 25
10. Find the missing number: 59 − ____ = 35
11. Find the missing number: 45 − ____ = 14
12. Find the missing number: 41 − ____ = 35
12 questions · Seed 107 · 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 − ____ = 22
5Subtract 22 from 27: 27 − 22 = 5.
2. Find the missing number: 31 − ____ = 8
23Subtract 8 from 31: 31 − 8 = 23.
3. Find the missing number: 33 − ____ = 15
18Subtract 15 from 33: 33 − 15 = 18.
4. Find the missing number: 66 − ____ = 32
34Subtract 32 from 66: 66 − 32 = 34.
5. Find the missing number: 61 − ____ = 29
32Subtract 29 from 61: 61 − 29 = 32.
6. Find the missing number: 50 − ____ = 18
32Subtract 18 from 50: 50 − 18 = 32.
7. Find the missing number: 48 − ____ = 31
17Subtract 31 from 48: 48 − 31 = 17.
8. Find the missing number: 21 − ____ = 18
3Subtract 18 from 21: 21 − 18 = 3.
9. Find the missing number: 48 − ____ = 25
23Subtract 25 from 48: 48 − 25 = 23.
10. Find the missing number: 59 − ____ = 35
24Subtract 35 from 59: 59 − 35 = 24.
11. Find the missing number: 45 − ____ = 14
31Subtract 14 from 45: 45 − 14 = 31.
12. Find the missing number: 41 − ____ = 35
6Subtract 35 from 41: 41 − 35 = 6.
12 questions · Seed 107 · 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 − ____ = 22
2. Find the missing number: 31 − ____ = 8
3. Find the missing number: 33 − ____ = 15
4. Find the missing number: 66 − ____ = 32
5. Find the missing number: 61 − ____ = 29
6. Find the missing number: 50 − ____ = 18
7. Find the missing number: 48 − ____ = 31
8. Find the missing number: 21 − ____ = 18
9. Find the missing number: 48 − ____ = 25
10. Find the missing number: 59 − ____ = 35
11. Find the missing number: 45 − ____ = 14
12. Find the missing number: 41 − ____ = 35
12 questions · Seed 107 · 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 − ____ = 22
5Subtract 22 from 27: 27 − 22 = 5.
2. Find the missing number: 31 − ____ = 8
23Subtract 8 from 31: 31 − 8 = 23.
3. Find the missing number: 33 − ____ = 15
18Subtract 15 from 33: 33 − 15 = 18.
4. Find the missing number: 66 − ____ = 32
34Subtract 32 from 66: 66 − 32 = 34.
5. Find the missing number: 61 − ____ = 29
32Subtract 29 from 61: 61 − 29 = 32.
6. Find the missing number: 50 − ____ = 18
32Subtract 18 from 50: 50 − 18 = 32.
7. Find the missing number: 48 − ____ = 31
17Subtract 31 from 48: 48 − 31 = 17.
8. Find the missing number: 21 − ____ = 18
3Subtract 18 from 21: 21 − 18 = 3.
9. Find the missing number: 48 − ____ = 25
23Subtract 25 from 48: 48 − 25 = 23.
10. Find the missing number: 59 − ____ = 35
24Subtract 35 from 59: 59 − 35 = 24.
11. Find the missing number: 45 − ____ = 14
31Subtract 14 from 45: 45 − 14 = 31.
12. Find the missing number: 41 − ____ = 35
6Subtract 35 from 41: 41 − 35 = 6.
12 questions · Seed 107 · Age guidance, not curriculum certification